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Finding the Fourth Proportional to 71,981.60, 99,366.46 and 46,500.39

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Solution

The fourth proportional to 71,981.60, 99,366.46 and 46,500.39 is: 64,191.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,981.60 : 99,366.46 = 46,500.39 : x
  2. Step 2: Convert to fraction form
    71,981.60/99,366.46 = 46,500.39/x
  3. Step 3: Cross multiply
    71,981.60x = 99,366.46 × 46,500.39
  4. Step 4: Simplify right side
    71,981.60x = 4,620,579,026.67
  5. Step 5: Solve for x
    x = 4,620,579,026.67/71,981.60
  6. Step 6: Final answer
    x = 64,191.12

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.