Home / 78,326.50-108,179.68-53,132.26

Finding the Fourth Proportional to 78,326.50, 108,179.68 and 53,132.26

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Solution

The fourth proportional to 78,326.50, 108,179.68 and 53,132.26 is: 73,382.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,326.50 : 108,179.68 = 53,132.26 : x
  2. Step 2: Convert to fraction form
    78,326.50/108,179.68 = 53,132.26/x
  3. Step 3: Cross multiply
    78,326.50x = 108,179.68 × 53,132.26
  4. Step 4: Simplify right side
    78,326.50x = 5,747,830,884.48
  5. Step 5: Solve for x
    x = 5,747,830,884.48/78,326.50
  6. Step 6: Final answer
    x = 73,382.97

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1.5x scale

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.