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Finding the Fourth Proportional to 47,999.40, 71,999.10 and 36,335.40

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Solution

The fourth proportional to 47,999.40, 71,999.10 and 36,335.40 is: 54,503.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,999.40 : 71,999.10 = 36,335.40 : x
  2. Step 2: Convert to fraction form
    47,999.40/71,999.10 = 36,335.40/x
  3. Step 3: Cross multiply
    47,999.40x = 71,999.10 × 36,335.40
  4. Step 4: Simplify right side
    47,999.40x = 2,616,116,098.14
  5. Step 5: Solve for x
    x = 2,616,116,098.14/47,999.40
  6. Step 6: Final answer
    x = 54,503.10

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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.