Home / 86,580.29-129,884.09-36,660.66

Finding the Fourth Proportional to 86,580.29, 129,884.09 and 36,660.66

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Solution

The fourth proportional to 86,580.29, 129,884.09 and 36,660.66 is: 54,996.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,580.29 : 129,884.09 = 36,660.66 : x
  2. Step 2: Convert to fraction form
    86,580.29/129,884.09 = 36,660.66/x
  3. Step 3: Cross multiply
    86,580.29x = 129,884.09 × 36,660.66
  4. Step 4: Simplify right side
    86,580.29x = 4,761,636,279.60
  5. Step 5: Solve for x
    x = 4,761,636,279.60/86,580.29
  6. Step 6: Final answer
    x = 54,996.77

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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.