Home / 84,468.22-126,731.31-31,892.74

Finding the Fourth Proportional to 84,468.22, 126,731.31 and 31,892.74

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Solution

The fourth proportional to 84,468.22, 126,731.31 and 31,892.74 is: 47,850.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,468.22 : 126,731.31 = 31,892.74 : x
  2. Step 2: Convert to fraction form
    84,468.22/126,731.31 = 31,892.74/x
  3. Step 3: Cross multiply
    84,468.22x = 126,731.31 × 31,892.74
  4. Step 4: Simplify right side
    84,468.22x = 4,041,808,719.69
  5. Step 5: Solve for x
    x = 4,041,808,719.69/84,468.22
  6. Step 6: Final answer
    x = 47,850.05

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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.