Home / 88,057.18-121,515.55-47,769.54

Finding the Fourth Proportional to 88,057.18, 121,515.55 and 47,769.54

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Solution

The fourth proportional to 88,057.18, 121,515.55 and 47,769.54 is: 65,920.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,057.18 : 121,515.55 = 47,769.54 : x
  2. Step 2: Convert to fraction form
    88,057.18/121,515.55 = 47,769.54/x
  3. Step 3: Cross multiply
    88,057.18x = 121,515.55 × 47,769.54
  4. Step 4: Simplify right side
    88,057.18x = 5,804,741,926.35
  5. Step 5: Solve for x
    x = 5,804,741,926.35/88,057.18
  6. Step 6: Final answer
    x = 65,920.14

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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.