Home / 86,276.20-129,487.20-33,723.40

Finding the Fourth Proportional to 86,276.20, 129,487.20 and 33,723.40

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Solution

The fourth proportional to 86,276.20, 129,487.20 and 33,723.40 is: 50,613.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,276.20 : 129,487.20 = 33,723.40 : x
  2. Step 2: Convert to fraction form
    86,276.20/129,487.20 = 33,723.40/x
  3. Step 3: Cross multiply
    86,276.20x = 129,487.20 × 33,723.40
  4. Step 4: Simplify right side
    86,276.20x = 4,366,748,640.48
  5. Step 5: Solve for x
    x = 4,366,748,640.48/86,276.20
  6. Step 6: Final answer
    x = 50,613.59

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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.