Home / 88,015.04-121,421.40-52,206.56

Finding the Fourth Proportional to 88,015.04, 121,421.40 and 52,206.56

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Solution

The fourth proportional to 88,015.04, 121,421.40 and 52,206.56 is: 72,021.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,015.04 : 121,421.40 = 52,206.56 : x
  2. Step 2: Convert to fraction form
    88,015.04/121,421.40 = 52,206.56/x
  3. Step 3: Cross multiply
    88,015.04x = 121,421.40 × 52,206.56
  4. Step 4: Simplify right side
    88,015.04x = 6,338,993,604.38
  5. Step 5: Solve for x
    x = 6,338,993,604.38/88,015.04
  6. Step 6: Final answer
    x = 72,021.71

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.