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Finding the Fourth Proportional to 71,024.60, 98,018.70 and 40,819.70

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Solution

The fourth proportional to 71,024.60, 98,018.70 and 40,819.70 is: 56,333.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,024.60 : 98,018.70 = 40,819.70 : x
  2. Step 2: Convert to fraction form
    71,024.60/98,018.70 = 40,819.70/x
  3. Step 3: Cross multiply
    71,024.60x = 98,018.70 × 40,819.70
  4. Step 4: Simplify right side
    71,024.60x = 4,001,093,928.39
  5. Step 5: Solve for x
    x = 4,001,093,928.39/71,024.60
  6. Step 6: Final answer
    x = 56,333.92

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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.