Home / 86,580.46-129,772.35-36,629.38

Finding the Fourth Proportional to 86,580.46, 129,772.35 and 36,629.38

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Solution

The fourth proportional to 86,580.46, 129,772.35 and 36,629.38 is: 54,902.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,580.46 : 129,772.35 = 36,629.38 : x
  2. Step 2: Convert to fraction form
    86,580.46/129,772.35 = 36,629.38/x
  3. Step 3: Cross multiply
    86,580.46x = 129,772.35 × 36,629.38
  4. Step 4: Simplify right side
    86,580.46x = 4,753,480,721.64
  5. Step 5: Solve for x
    x = 4,753,480,721.64/86,580.46
  6. Step 6: Final answer
    x = 54,902.47

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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.