Home / 374,387.20-561,580.79-90,077.75

Finding the Fourth Proportional to 374,387.20, 561,580.79 and 90,077.75

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Solution

The fourth proportional to 374,387.20, 561,580.79 and 90,077.75 is: 135,116.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,387.20 : 561,580.79 = 90,077.75 : x
  2. Step 2: Convert to fraction form
    374,387.20/561,580.79 = 90,077.75/x
  3. Step 3: Cross multiply
    374,387.20x = 561,580.79 × 90,077.75
  4. Step 4: Simplify right side
    374,387.20x = 50,585,934,006.42
  5. Step 5: Solve for x
    x = 50,585,934,006.42/374,387.20
  6. Step 6: Final answer
    x = 135,116.62

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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.