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Finding the Fourth Proportional to 47,404.80, 71,042.40 and 31,564.80

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Solution

The fourth proportional to 47,404.80, 71,042.40 and 31,564.80 is: 47,304.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,404.80 : 71,042.40 = 31,564.80 : x
  2. Step 2: Convert to fraction form
    47,404.80/71,042.40 = 31,564.80/x
  3. Step 3: Cross multiply
    47,404.80x = 71,042.40 × 31,564.80
  4. Step 4: Simplify right side
    47,404.80x = 2,242,439,147.52
  5. Step 5: Solve for x
    x = 2,242,439,147.52/47,404.80
  6. Step 6: Final answer
    x = 47,304.05

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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.