Home / 57,723.78-86,585.68-42,028.70

Finding the Fourth Proportional to 57,723.78, 86,585.68 and 42,028.70

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Solution

The fourth proportional to 57,723.78, 86,585.68 and 42,028.70 is: 63,043.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,723.78 : 86,585.68 = 42,028.70 : x
  2. Step 2: Convert to fraction form
    57,723.78/86,585.68 = 42,028.70/x
  3. Step 3: Cross multiply
    57,723.78x = 86,585.68 × 42,028.70
  4. Step 4: Simplify right side
    57,723.78x = 3,639,083,569.02
  5. Step 5: Solve for x
    x = 3,639,083,569.02/57,723.78
  6. Step 6: Final answer
    x = 63,043.06

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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.