Home / 86,722.59-129,899.47-41,677.79

Finding the Fourth Proportional to 86,722.59, 129,899.47 and 41,677.79

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Solution

The fourth proportional to 86,722.59, 129,899.47 and 41,677.79 is: 62,428.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,722.59 : 129,899.47 = 41,677.79 : x
  2. Step 2: Convert to fraction form
    86,722.59/129,899.47 = 41,677.79/x
  3. Step 3: Cross multiply
    86,722.59x = 129,899.47 × 41,677.79
  4. Step 4: Simplify right side
    86,722.59x = 5,413,923,052.33
  5. Step 5: Solve for x
    x = 5,413,923,052.33/86,722.59
  6. Step 6: Final answer
    x = 62,428.06

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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.