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Finding the Fourth Proportional to 63,077.70, 87,047.80 and 36,219.80

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Solution

The fourth proportional to 63,077.70, 87,047.80 and 36,219.80 is: 49,983.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,077.70 : 87,047.80 = 36,219.80 : x
  2. Step 2: Convert to fraction form
    63,077.70/87,047.80 = 36,219.80/x
  3. Step 3: Cross multiply
    63,077.70x = 87,047.80 × 36,219.80
  4. Step 4: Simplify right side
    63,077.70x = 3,152,853,906.44
  5. Step 5: Solve for x
    x = 3,152,853,906.44/63,077.70
  6. Step 6: Final answer
    x = 49,983.65

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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.