Home / 90,776.22-136,167.98-31,617.87

Finding the Fourth Proportional to 90,776.22, 136,167.98 and 31,617.87

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Solution

The fourth proportional to 90,776.22, 136,167.98 and 31,617.87 is: 47,428.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,776.22 : 136,167.98 = 31,617.87 : x
  2. Step 2: Convert to fraction form
    90,776.22/136,167.98 = 31,617.87/x
  3. Step 3: Cross multiply
    90,776.22x = 136,167.98 × 31,617.87
  4. Step 4: Simplify right side
    90,776.22x = 4,305,341,331.71
  5. Step 5: Solve for x
    x = 4,305,341,331.71/90,776.22
  6. Step 6: Final answer
    x = 47,428.07

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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.