Home / 84,543.36-126,805.44-22,218.72

Finding the Fourth Proportional to 84,543.36, 126,805.44 and 22,218.72

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Solution

The fourth proportional to 84,543.36, 126,805.44 and 22,218.72 is: 33,325.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,543.36 : 126,805.44 = 22,218.72 : x
  2. Step 2: Convert to fraction form
    84,543.36/126,805.44 = 22,218.72/x
  3. Step 3: Cross multiply
    84,543.36x = 126,805.44 × 22,218.72
  4. Step 4: Simplify right side
    84,543.36x = 2,817,454,565.84
  5. Step 5: Solve for x
    x = 2,817,454,565.84/84,543.36
  6. Step 6: Final answer
    x = 33,325.56

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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.