Home / 86,411.40-129,617.10-24,081.90

Finding the Fourth Proportional to 86,411.40, 129,617.10 and 24,081.90

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Solution

The fourth proportional to 86,411.40, 129,617.10 and 24,081.90 is: 36,122.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,411.40 : 129,617.10 = 24,081.90 : x
  2. Step 2: Convert to fraction form
    86,411.40/129,617.10 = 24,081.90/x
  3. Step 3: Cross multiply
    86,411.40x = 129,617.10 × 24,081.90
  4. Step 4: Simplify right side
    86,411.40x = 3,121,426,040.49
  5. Step 5: Solve for x
    x = 3,121,426,040.49/86,411.40
  6. Step 6: Final answer
    x = 36,122.85

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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.