Home / 80,966.93-121,446.54-28,372.41

Finding the Fourth Proportional to 80,966.93, 121,446.54 and 28,372.41

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Solution

The fourth proportional to 80,966.93, 121,446.54 and 28,372.41 is: 42,557.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,966.93 : 121,446.54 = 28,372.41 : x
  2. Step 2: Convert to fraction form
    80,966.93/121,446.54 = 28,372.41/x
  3. Step 3: Cross multiply
    80,966.93x = 121,446.54 × 28,372.41
  4. Step 4: Simplify right side
    80,966.93x = 3,445,731,025.96
  5. Step 5: Solve for x
    x = 3,445,731,025.96/80,966.93
  6. Step 6: Final answer
    x = 42,557.27

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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.