Home / 100,044.72-150,011.64-40,921.92

Finding the Fourth Proportional to 100,044.72, 150,011.64 and 40,921.92

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Solution

The fourth proportional to 100,044.72, 150,011.64 and 40,921.92 is: 61,360.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,044.72 : 150,011.64 = 40,921.92 : x
  2. Step 2: Convert to fraction form
    100,044.72/150,011.64 = 40,921.92/x
  3. Step 3: Cross multiply
    100,044.72x = 150,011.64 × 40,921.92
  4. Step 4: Simplify right side
    100,044.72x = 6,138,764,331.15
  5. Step 5: Solve for x
    x = 6,138,764,331.15/100,044.72
  6. Step 6: Final answer
    x = 61,360.20

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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.