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Finding the Fourth Proportional to 100,052.72, 150,023.60 and 40,929.92

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Solution

The fourth proportional to 100,052.72, 150,023.60 and 40,929.92 is: 61,372.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,052.72 : 150,023.60 = 40,929.92 : x
  2. Step 2: Convert to fraction form
    100,052.72/150,023.60 = 40,929.92/x
  3. Step 3: Cross multiply
    100,052.72x = 150,023.60 × 40,929.92
  4. Step 4: Simplify right side
    100,052.72x = 6,140,453,946.11
  5. Step 5: Solve for x
    x = 6,140,453,946.11/100,052.72
  6. Step 6: Final answer
    x = 61,372.18

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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.