Home / 90,490.44-135,780.92-40,606.20

Finding the Fourth Proportional to 90,490.44, 135,780.92 and 40,606.20

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Solution

The fourth proportional to 90,490.44, 135,780.92 and 40,606.20 is: 60,929.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,490.44 : 135,780.92 = 40,606.20 : x
  2. Step 2: Convert to fraction form
    90,490.44/135,780.92 = 40,606.20/x
  3. Step 3: Cross multiply
    90,490.44x = 135,780.92 × 40,606.20
  4. Step 4: Simplify right side
    90,490.44x = 5,513,547,193.70
  5. Step 5: Solve for x
    x = 5,513,547,193.70/90,490.44
  6. Step 6: Final answer
    x = 60,929.61

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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.