Home / 84,077.28-126,194.64-42,553.44

Finding the Fourth Proportional to 84,077.28, 126,194.64 and 42,553.44

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Solution

The fourth proportional to 84,077.28, 126,194.64 and 42,553.44 is: 63,870.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,077.28 : 126,194.64 = 42,553.44 : x
  2. Step 2: Convert to fraction form
    84,077.28/126,194.64 = 42,553.44/x
  3. Step 3: Cross multiply
    84,077.28x = 126,194.64 × 42,553.44
  4. Step 4: Simplify right side
    84,077.28x = 5,370,016,041.56
  5. Step 5: Solve for x
    x = 5,370,016,041.56/84,077.28
  6. Step 6: Final answer
    x = 63,870.00

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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.