Home / 90,657.11-135,847.14-38,037.89

Finding the Fourth Proportional to 90,657.11, 135,847.14 and 38,037.89

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Solution

The fourth proportional to 90,657.11, 135,847.14 and 38,037.89 is: 56,998.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,657.11 : 135,847.14 = 38,037.89 : x
  2. Step 2: Convert to fraction form
    90,657.11/135,847.14 = 38,037.89/x
  3. Step 3: Cross multiply
    90,657.11x = 135,847.14 × 38,037.89
  4. Step 4: Simplify right side
    90,657.11x = 5,167,337,888.90
  5. Step 5: Solve for x
    x = 5,167,337,888.90/90,657.11
  6. Step 6: Final answer
    x = 56,998.71

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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.