Home / 84,555.83-126,669.57-75,572.39

Finding the Fourth Proportional to 84,555.83, 126,669.57 and 75,572.39

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Solution

The fourth proportional to 84,555.83, 126,669.57 and 75,572.39 is: 113,211.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,555.83 : 126,669.57 = 75,572.39 : x
  2. Step 2: Convert to fraction form
    84,555.83/126,669.57 = 75,572.39/x
  3. Step 3: Cross multiply
    84,555.83x = 126,669.57 × 75,572.39
  4. Step 4: Simplify right side
    84,555.83x = 9,572,721,511.82
  5. Step 5: Solve for x
    x = 9,572,721,511.82/84,555.83
  6. Step 6: Final answer
    x = 113,211.85

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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.