Home / 86,233.60-129,318.13-30,059.29

Finding the Fourth Proportional to 86,233.60, 129,318.13 and 30,059.29

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Solution

The fourth proportional to 86,233.60, 129,318.13 and 30,059.29 is: 45,077.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,233.60 : 129,318.13 = 30,059.29 : x
  2. Step 2: Convert to fraction form
    86,233.60/129,318.13 = 30,059.29/x
  3. Step 3: Cross multiply
    86,233.60x = 129,318.13 × 30,059.29
  4. Step 4: Simplify right side
    86,233.60x = 3,887,211,171.93
  5. Step 5: Solve for x
    x = 3,887,211,171.93/86,233.60
  6. Step 6: Final answer
    x = 45,077.69

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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.