Home / 42,177.20-63,266.04-11,012.72

Finding the Fourth Proportional to 42,177.20, 63,266.04 and 11,012.72

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Solution

The fourth proportional to 42,177.20, 63,266.04 and 11,012.72 is: 16,519.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,177.20 : 63,266.04 = 11,012.72 : x
  2. Step 2: Convert to fraction form
    42,177.20/63,266.04 = 11,012.72/x
  3. Step 3: Cross multiply
    42,177.20x = 63,266.04 × 11,012.72
  4. Step 4: Simplify right side
    42,177.20x = 696,731,184.03
  5. Step 5: Solve for x
    x = 696,731,184.03/42,177.20
  6. Step 6: Final answer
    x = 16,519.14

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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.