Home / 84,576.30-126,864.45-25,421.10

Finding the Fourth Proportional to 84,576.30, 126,864.45 and 25,421.10

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Solution

The fourth proportional to 84,576.30, 126,864.45 and 25,421.10 is: 38,131.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,576.30 : 126,864.45 = 25,421.10 : x
  2. Step 2: Convert to fraction form
    84,576.30/126,864.45 = 25,421.10/x
  3. Step 3: Cross multiply
    84,576.30x = 126,864.45 × 25,421.10
  4. Step 4: Simplify right side
    84,576.30x = 3,225,033,869.90
  5. Step 5: Solve for x
    x = 3,225,033,869.90/84,576.30
  6. Step 6: Final answer
    x = 38,131.65

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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.