Home / 86,532.11-129,811.89-36,612.58

Finding the Fourth Proportional to 86,532.11, 129,811.89 and 36,612.58

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Solution

The fourth proportional to 86,532.11, 129,811.89 and 36,612.58 is: 54,924.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,532.11 : 129,811.89 = 36,612.58 : x
  2. Step 2: Convert to fraction form
    86,532.11/129,811.89 = 36,612.58/x
  3. Step 3: Cross multiply
    86,532.11x = 129,811.89 × 36,612.58
  4. Step 4: Simplify right side
    86,532.11x = 4,752,748,207.58
  5. Step 5: Solve for x
    x = 4,752,748,207.58/86,532.11
  6. Step 6: Final answer
    x = 54,924.68

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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.