Home / 86,517.28-129,776.04-24,187.72

Finding the Fourth Proportional to 86,517.28, 129,776.04 and 24,187.72

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Solution

The fourth proportional to 86,517.28, 129,776.04 and 24,187.72 is: 36,281.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,517.28 : 129,776.04 = 24,187.72 : x
  2. Step 2: Convert to fraction form
    86,517.28/129,776.04 = 24,187.72/x
  3. Step 3: Cross multiply
    86,517.28x = 129,776.04 × 24,187.72
  4. Step 4: Simplify right side
    86,517.28x = 3,138,986,518.23
  5. Step 5: Solve for x
    x = 3,138,986,518.23/86,517.28
  6. Step 6: Final answer
    x = 36,281.61

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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.