Home / 86,743.20-129,823.20-60,499.20

Finding the Fourth Proportional to 86,743.20, 129,823.20 and 60,499.20

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Solution

The fourth proportional to 86,743.20, 129,823.20 and 60,499.20 is: 90,545.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,743.20 : 129,823.20 = 60,499.20 : x
  2. Step 2: Convert to fraction form
    86,743.20/129,823.20 = 60,499.20/x
  3. Step 3: Cross multiply
    86,743.20x = 129,823.20 × 60,499.20
  4. Step 4: Simplify right side
    86,743.20x = 7,854,199,741.44
  5. Step 5: Solve for x
    x = 7,854,199,741.44/86,743.20
  6. Step 6: Final answer
    x = 90,545.42

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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.