Home / 57,414.43-86,130.87-19,985.14

Finding the Fourth Proportional to 57,414.43, 86,130.87 and 19,985.14

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Solution

The fourth proportional to 57,414.43, 86,130.87 and 19,985.14 is: 29,980.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,414.43 : 86,130.87 = 19,985.14 : x
  2. Step 2: Convert to fraction form
    57,414.43/86,130.87 = 19,985.14/x
  3. Step 3: Cross multiply
    57,414.43x = 86,130.87 × 19,985.14
  4. Step 4: Simplify right side
    57,414.43x = 1,721,337,064.62
  5. Step 5: Solve for x
    x = 1,721,337,064.62/57,414.43
  6. Step 6: Final answer
    x = 29,980.92

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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.