Home / 86,019.27-129,044.04-39,276.87

Finding the Fourth Proportional to 86,019.27, 129,044.04 and 39,276.87

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Solution

The fourth proportional to 86,019.27, 129,044.04 and 39,276.87 is: 58,922.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,019.27 : 129,044.04 = 39,276.87 : x
  2. Step 2: Convert to fraction form
    86,019.27/129,044.04 = 39,276.87/x
  3. Step 3: Cross multiply
    86,019.27x = 129,044.04 × 39,276.87
  4. Step 4: Simplify right side
    86,019.27x = 5,068,445,983.35
  5. Step 5: Solve for x
    x = 5,068,445,983.35/86,019.27
  6. Step 6: Final answer
    x = 58,922.22

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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.