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Finding the Fourth Proportional to 63,620.40, 87,787.89 and 35,320.62

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Solution

The fourth proportional to 63,620.40, 87,787.89 and 35,320.62 is: 48,737.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,620.40 : 87,787.89 = 35,320.62 : x
  2. Step 2: Convert to fraction form
    63,620.40/87,787.89 = 35,320.62/x
  3. Step 3: Cross multiply
    63,620.40x = 87,787.89 × 35,320.62
  4. Step 4: Simplify right side
    63,620.40x = 3,100,722,703.29
  5. Step 5: Solve for x
    x = 3,100,722,703.29/63,620.40
  6. Step 6: Final answer
    x = 48,737.87

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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.