Home / 74,470.35-102,769.65-40,478.85

Finding the Fourth Proportional to 74,470.35, 102,769.65 and 40,478.85

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Solution

The fourth proportional to 74,470.35, 102,769.65 and 40,478.85 is: 55,861.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,470.35 : 102,769.65 = 40,478.85 : x
  2. Step 2: Convert to fraction form
    74,470.35/102,769.65 = 40,478.85/x
  3. Step 3: Cross multiply
    74,470.35x = 102,769.65 × 40,478.85
  4. Step 4: Simplify right side
    74,470.35x = 4,159,997,246.90
  5. Step 5: Solve for x
    x = 4,159,997,246.90/74,470.35
  6. Step 6: Final answer
    x = 55,861.12

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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.