Home / 86,088.15-129,142.04-22,910.87

Finding the Fourth Proportional to 86,088.15, 129,142.04 and 22,910.87

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Solution

The fourth proportional to 86,088.15, 129,142.04 and 22,910.87 is: 34,368.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,088.15 : 129,142.04 = 22,910.87 : x
  2. Step 2: Convert to fraction form
    86,088.15/129,142.04 = 22,910.87/x
  3. Step 3: Cross multiply
    86,088.15x = 129,142.04 × 22,910.87
  4. Step 4: Simplify right side
    86,088.15x = 2,958,755,729.71
  5. Step 5: Solve for x
    x = 2,958,755,729.71/86,088.15
  6. Step 6: Final answer
    x = 34,368.91

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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.