Home / 71,187.20-98,230.32-39,348.08

Finding the Fourth Proportional to 71,187.20, 98,230.32 and 39,348.08

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Solution

The fourth proportional to 71,187.20, 98,230.32 and 39,348.08 is: 54,295.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,187.20 : 98,230.32 = 39,348.08 : x
  2. Step 2: Convert to fraction form
    71,187.20/98,230.32 = 39,348.08/x
  3. Step 3: Cross multiply
    71,187.20x = 98,230.32 × 39,348.08
  4. Step 4: Simplify right side
    71,187.20x = 3,865,174,489.79
  5. Step 5: Solve for x
    x = 3,865,174,489.79/71,187.20
  6. Step 6: Final answer
    x = 54,295.92

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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.