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Finding the Fourth Proportional to 73,488.77, 110,232.92 and 20,180.80

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Solution

The fourth proportional to 73,488.77, 110,232.92 and 20,180.80 is: 30,271.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,488.77 : 110,232.92 = 20,180.80 : x
  2. Step 2: Convert to fraction form
    73,488.77/110,232.92 = 20,180.80/x
  3. Step 3: Cross multiply
    73,488.77x = 110,232.92 × 20,180.80
  4. Step 4: Simplify right side
    73,488.77x = 2,224,588,294.10
  5. Step 5: Solve for x
    x = 2,224,588,294.10/73,488.77
  6. Step 6: Final answer
    x = 30,271.13

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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.