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Finding the Fourth Proportional to 86,343.92, 119,121.85 and 52,340.00

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Solution

The fourth proportional to 86,343.92, 119,121.85 and 52,340.00 is: 72,209.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,343.92 : 119,121.85 = 52,340.00 : x
  2. Step 2: Convert to fraction form
    86,343.92/119,121.85 = 52,340.00/x
  3. Step 3: Cross multiply
    86,343.92x = 119,121.85 × 52,340.00
  4. Step 4: Simplify right side
    86,343.92x = 6,234,837,795.95
  5. Step 5: Solve for x
    x = 6,234,837,795.95/86,343.92
  6. Step 6: Final answer
    x = 72,209.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.