Home / 86,363.46-129,582.88-30,243.85

Finding the Fourth Proportional to 86,363.46, 129,582.88 and 30,243.85

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Solution

The fourth proportional to 86,363.46, 129,582.88 and 30,243.85 is: 45,378.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,363.46 : 129,582.88 = 30,243.85 : x
  2. Step 2: Convert to fraction form
    86,363.46/129,582.88 = 30,243.85/x
  3. Step 3: Cross multiply
    86,363.46x = 129,582.88 × 30,243.85
  4. Step 4: Simplify right side
    86,363.46x = 3,919,084,785.72
  5. Step 5: Solve for x
    x = 3,919,084,785.72/86,363.46
  6. Step 6: Final answer
    x = 45,378.97

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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.