Home / 78,939.12-108,935.92-44,945.88

Finding the Fourth Proportional to 78,939.12, 108,935.92 and 44,945.88

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Solution

The fourth proportional to 78,939.12, 108,935.92 and 44,945.88 is: 62,025.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,939.12 : 108,935.92 = 44,945.88 : x
  2. Step 2: Convert to fraction form
    78,939.12/108,935.92 = 44,945.88/x
  3. Step 3: Cross multiply
    78,939.12x = 108,935.92 × 44,945.88
  4. Step 4: Simplify right side
    78,939.12x = 4,896,220,788.01
  5. Step 5: Solve for x
    x = 4,896,220,788.01/78,939.12
  6. Step 6: Final answer
    x = 62,025.28

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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.