Home / 74,470.55-102,769.17-40,479.04

Finding the Fourth Proportional to 74,470.55, 102,769.17 and 40,479.04

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Solution

The fourth proportional to 74,470.55, 102,769.17 and 40,479.04 is: 55,860.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,470.55 : 102,769.17 = 40,479.04 : x
  2. Step 2: Convert to fraction form
    74,470.55/102,769.17 = 40,479.04/x
  3. Step 3: Cross multiply
    74,470.55x = 102,769.17 × 40,479.04
  4. Step 4: Simplify right side
    74,470.55x = 4,159,996,829.35
  5. Step 5: Solve for x
    x = 4,159,996,829.35/74,470.55
  6. Step 6: Final answer
    x = 55,860.97

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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.