Home / 80,462.47-120,773.16-60,402.21

Finding the Fourth Proportional to 80,462.47, 120,773.16 and 60,402.21

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Solution

The fourth proportional to 80,462.47, 120,773.16 and 60,402.21 is: 90,662.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,462.47 : 120,773.16 = 60,402.21 : x
  2. Step 2: Convert to fraction form
    80,462.47/120,773.16 = 60,402.21/x
  3. Step 3: Cross multiply
    80,462.47x = 120,773.16 × 60,402.21
  4. Step 4: Simplify right side
    80,462.47x = 7,294,965,810.36
  5. Step 5: Solve for x
    x = 7,294,965,810.36/80,462.47
  6. Step 6: Final answer
    x = 90,662.96

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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.