Home / 57,973.10-86,972.14-17,991.30

Finding the Fourth Proportional to 57,973.10, 86,972.14 and 17,991.30

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Solution

The fourth proportional to 57,973.10, 86,972.14 and 17,991.30 is: 26,990.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,973.10 : 86,972.14 = 17,991.30 : x
  2. Step 2: Convert to fraction form
    57,973.10/86,972.14 = 17,991.30/x
  3. Step 3: Cross multiply
    57,973.10x = 86,972.14 × 17,991.30
  4. Step 4: Simplify right side
    57,973.10x = 1,564,741,862.38
  5. Step 5: Solve for x
    x = 1,564,741,862.38/57,973.10
  6. Step 6: Final answer
    x = 26,990.83

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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.