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Finding the Fourth Proportional to 86,498.40, 129,723.30 and 27,352.20

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Solution

The fourth proportional to 86,498.40, 129,723.30 and 27,352.20 is: 41,020.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,498.40 : 129,723.30 = 27,352.20 : x
  2. Step 2: Convert to fraction form
    86,498.40/129,723.30 = 27,352.20/x
  3. Step 3: Cross multiply
    86,498.40x = 129,723.30 × 27,352.20
  4. Step 4: Simplify right side
    86,498.40x = 3,548,217,646.26
  5. Step 5: Solve for x
    x = 3,548,217,646.26/86,498.40
  6. Step 6: Final answer
    x = 41,020.62

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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.