Home / 74,470.50-102,769.29-49,320

Finding the Fourth Proportional to 74,470.50, 102,769.29 and 49,320

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Solution

The fourth proportional to 74,470.50, 102,769.29 and 49,320 is: 68,061.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,470.50 : 102,769.29 = 49,320 : x
  2. Step 2: Convert to fraction form
    74,470.50/102,769.29 = 49,320/x
  3. Step 3: Cross multiply
    74,470.50x = 102,769.29 × 49,320
  4. Step 4: Simplify right side
    74,470.50x = 5,068,581,382.80
  5. Step 5: Solve for x
    x = 5,068,581,382.80/74,470.50
  6. Step 6: Final answer
    x = 68,061.60

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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.