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Finding the Fourth Proportional to 63,959.80, 95,939.70 and 40,631.80

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Solution

The fourth proportional to 63,959.80, 95,939.70 and 40,631.80 is: 60,947.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,959.80 : 95,939.70 = 40,631.80 : x
  2. Step 2: Convert to fraction form
    63,959.80/95,939.70 = 40,631.80/x
  3. Step 3: Cross multiply
    63,959.80x = 95,939.70 × 40,631.80
  4. Step 4: Simplify right side
    63,959.80x = 3,898,202,702.46
  5. Step 5: Solve for x
    x = 3,898,202,702.46/63,959.80
  6. Step 6: Final answer
    x = 60,947.70

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1.5x scale

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.