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Finding the Fourth Proportional to 86,149.40, 129,171.18 and 33,497.52

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Solution

The fourth proportional to 86,149.40, 129,171.18 and 33,497.52 is: 50,225.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,149.40 : 129,171.18 = 33,497.52 : x
  2. Step 2: Convert to fraction form
    86,149.40/129,171.18 = 33,497.52/x
  3. Step 3: Cross multiply
    86,149.40x = 129,171.18 × 33,497.52
  4. Step 4: Simplify right side
    86,149.40x = 4,326,914,185.47
  5. Step 5: Solve for x
    x = 4,326,914,185.47/86,149.40
  6. Step 6: Final answer
    x = 50,225.70

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1.5x scale

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.