Home / 86,387.74-129,498.38-44,287.58

Finding the Fourth Proportional to 86,387.74, 129,498.38 and 44,287.58

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Solution

The fourth proportional to 86,387.74, 129,498.38 and 44,287.58 is: 66,388.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,387.74 : 129,498.38 = 44,287.58 : x
  2. Step 2: Convert to fraction form
    86,387.74/129,498.38 = 44,287.58/x
  3. Step 3: Cross multiply
    86,387.74x = 129,498.38 × 44,287.58
  4. Step 4: Simplify right side
    86,387.74x = 5,735,169,864.12
  5. Step 5: Solve for x
    x = 5,735,169,864.12/86,387.74
  6. Step 6: Final answer
    x = 66,388.70

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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.