Home / 84,077.02-126,027.85-31,463.58

Finding the Fourth Proportional to 84,077.02, 126,027.85 and 31,463.58

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Solution

The fourth proportional to 84,077.02, 126,027.85 and 31,463.58 is: 47,162.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,077.02 : 126,027.85 = 31,463.58 : x
  2. Step 2: Convert to fraction form
    84,077.02/126,027.85 = 31,463.58/x
  3. Step 3: Cross multiply
    84,077.02x = 126,027.85 × 31,463.58
  4. Step 4: Simplify right side
    84,077.02x = 3,965,287,340.70
  5. Step 5: Solve for x
    x = 3,965,287,340.70/84,077.02
  6. Step 6: Final answer
    x = 47,162.56

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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.