Home / 57,987.28-86,985.17-18,001.02

Finding the Fourth Proportional to 57,987.28, 86,985.17 and 18,001.02

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Solution

The fourth proportional to 57,987.28, 86,985.17 and 18,001.02 is: 27,002.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,987.28 : 86,985.17 = 18,001.02 : x
  2. Step 2: Convert to fraction form
    57,987.28/86,985.17 = 18,001.02/x
  3. Step 3: Cross multiply
    57,987.28x = 86,985.17 × 18,001.02
  4. Step 4: Simplify right side
    57,987.28x = 1,565,821,784.87
  5. Step 5: Solve for x
    x = 1,565,821,784.87/57,987.28
  6. Step 6: Final answer
    x = 27,002.85

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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.