Home / 55,931.31-83,909.94-18,489.11

Finding the Fourth Proportional to 55,931.31, 83,909.94 and 18,489.11

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Solution

The fourth proportional to 55,931.31, 83,909.94 and 18,489.11 is: 27,737.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,931.31 : 83,909.94 = 18,489.11 : x
  2. Step 2: Convert to fraction form
    55,931.31/83,909.94 = 18,489.11/x
  3. Step 3: Cross multiply
    55,931.31x = 83,909.94 × 18,489.11
  4. Step 4: Simplify right side
    55,931.31x = 1,551,420,110.75
  5. Step 5: Solve for x
    x = 1,551,420,110.75/55,931.31
  6. Step 6: Final answer
    x = 27,737.95

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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.