Home / 84,454.16-126,725-61,271.96

Finding the Fourth Proportional to 84,454.16, 126,725 and 61,271.96

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Solution

The fourth proportional to 84,454.16, 126,725 and 61,271.96 is: 91,939.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,454.16 : 126,725 = 61,271.96 : x
  2. Step 2: Convert to fraction form
    84,454.16/126,725 = 61,271.96/x
  3. Step 3: Cross multiply
    84,454.16x = 126,725 × 61,271.96
  4. Step 4: Simplify right side
    84,454.16x = 7,764,689,131
  5. Step 5: Solve for x
    x = 7,764,689,131/84,454.16
  6. Step 6: Final answer
    x = 91,939.69

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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.