Home / 86,219.52-129,343.86-39,476.04

Finding the Fourth Proportional to 86,219.52, 129,343.86 and 39,476.04

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Solution

The fourth proportional to 86,219.52, 129,343.86 and 39,476.04 is: 59,220.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,219.52 : 129,343.86 = 39,476.04 : x
  2. Step 2: Convert to fraction form
    86,219.52/129,343.86 = 39,476.04/x
  3. Step 3: Cross multiply
    86,219.52x = 129,343.86 × 39,476.04
  4. Step 4: Simplify right side
    86,219.52x = 5,105,983,391.11
  5. Step 5: Solve for x
    x = 5,105,983,391.11/86,219.52
  6. Step 6: Final answer
    x = 59,220.74

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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.