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Finding the Fourth Proportional to 84,347.52, 126,486.40 and 34,393.72

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Solution

The fourth proportional to 84,347.52, 126,486.40 and 34,393.72 is: 51,576.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,347.52 : 126,486.40 = 34,393.72 : x
  2. Step 2: Convert to fraction form
    84,347.52/126,486.40 = 34,393.72/x
  3. Step 3: Cross multiply
    84,347.52x = 126,486.40 × 34,393.72
  4. Step 4: Simplify right side
    84,347.52x = 4,350,337,825.41
  5. Step 5: Solve for x
    x = 4,350,337,825.41/84,347.52
  6. Step 6: Final answer
    x = 51,576.36

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1.5x scale

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.