Home / 89,711.11-134,567.69-38,412.86

Finding the Fourth Proportional to 89,711.11, 134,567.69 and 38,412.86

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Solution

The fourth proportional to 89,711.11, 134,567.69 and 38,412.86 is: 57,619.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,711.11 : 134,567.69 = 38,412.86 : x
  2. Step 2: Convert to fraction form
    89,711.11/134,567.69 = 38,412.86/x
  3. Step 3: Cross multiply
    89,711.11x = 134,567.69 × 38,412.86
  4. Step 4: Simplify right side
    89,711.11x = 5,169,129,644.43
  5. Step 5: Solve for x
    x = 5,169,129,644.43/89,711.11
  6. Step 6: Final answer
    x = 57,619.73

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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.