Home / 57,724.78-86,587.18-42,029.70

Finding the Fourth Proportional to 57,724.78, 86,587.18 and 42,029.70

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Solution

The fourth proportional to 57,724.78, 86,587.18 and 42,029.70 is: 63,044.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,724.78 : 86,587.18 = 42,029.70 : x
  2. Step 2: Convert to fraction form
    57,724.78/86,587.18 = 42,029.70/x
  3. Step 3: Cross multiply
    57,724.78x = 86,587.18 × 42,029.70
  4. Step 4: Simplify right side
    57,724.78x = 3,639,233,199.25
  5. Step 5: Solve for x
    x = 3,639,233,199.25/57,724.78
  6. Step 6: Final answer
    x = 63,044.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.