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Finding the Fourth Proportional to 47,440.40, 71,083.80 and 29,878.80

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Solution

The fourth proportional to 47,440.40, 71,083.80 and 29,878.80 is: 44,769.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,440.40 : 71,083.80 = 29,878.80 : x
  2. Step 2: Convert to fraction form
    47,440.40/71,083.80 = 29,878.80/x
  3. Step 3: Cross multiply
    47,440.40x = 71,083.80 × 29,878.80
  4. Step 4: Simplify right side
    47,440.40x = 2,123,898,643.44
  5. Step 5: Solve for x
    x = 2,123,898,643.44/47,440.40
  6. Step 6: Final answer
    x = 44,769.83

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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.