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Finding the Fourth Proportional to 84,404.88, 126,621.40 and 34,511.76

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Solution

The fourth proportional to 84,404.88, 126,621.40 and 34,511.76 is: 51,773.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,404.88 : 126,621.40 = 34,511.76 : x
  2. Step 2: Convert to fraction form
    84,404.88/126,621.40 = 34,511.76/x
  3. Step 3: Cross multiply
    84,404.88x = 126,621.40 × 34,511.76
  4. Step 4: Simplify right side
    84,404.88x = 4,369,927,367.66
  5. Step 5: Solve for x
    x = 4,369,927,367.66/84,404.88
  6. Step 6: Final answer
    x = 51,773.40

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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.