Home / 47,792.18-71,689.98-12,731.96

Finding the Fourth Proportional to 47,792.18, 71,689.98 and 12,731.96

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Solution

The fourth proportional to 47,792.18, 71,689.98 and 12,731.96 is: 19,098.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,792.18 : 71,689.98 = 12,731.96 : x
  2. Step 2: Convert to fraction form
    47,792.18/71,689.98 = 12,731.96/x
  3. Step 3: Cross multiply
    47,792.18x = 71,689.98 × 12,731.96
  4. Step 4: Simplify right side
    47,792.18x = 912,753,957.76
  5. Step 5: Solve for x
    x = 912,753,957.76/47,792.18
  6. Step 6: Final answer
    x = 19,098.40

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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.