Home / 40,717.10-61,084.38-12,636.56

Finding the Fourth Proportional to 40,717.10, 61,084.38 and 12,636.56

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Solution

The fourth proportional to 40,717.10, 61,084.38 and 12,636.56 is: 18,957.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,717.10 : 61,084.38 = 12,636.56 : x
  2. Step 2: Convert to fraction form
    40,717.10/61,084.38 = 12,636.56/x
  3. Step 3: Cross multiply
    40,717.10x = 61,084.38 × 12,636.56
  4. Step 4: Simplify right side
    40,717.10x = 771,896,432.93
  5. Step 5: Solve for x
    x = 771,896,432.93/40,717.10
  6. Step 6: Final answer
    x = 18,957.55

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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.