Home / 51,019.14-70,406.10-28,357.77

Finding the Fourth Proportional to 51,019.14, 70,406.10 and 28,357.77

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Solution

The fourth proportional to 51,019.14, 70,406.10 and 28,357.77 is: 39,133.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,019.14 : 70,406.10 = 28,357.77 : x
  2. Step 2: Convert to fraction form
    51,019.14/70,406.10 = 28,357.77/x
  3. Step 3: Cross multiply
    51,019.14x = 70,406.10 × 28,357.77
  4. Step 4: Simplify right side
    51,019.14x = 1,996,559,990.40
  5. Step 5: Solve for x
    x = 1,996,559,990.40/51,019.14
  6. Step 6: Final answer
    x = 39,133.55

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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.