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Finding the Fourth Proportional to 66,498.30, 99,747.45 and 63,217.80

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Solution

The fourth proportional to 66,498.30, 99,747.45 and 63,217.80 is: 94,826.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,498.30 : 99,747.45 = 63,217.80 : x
  2. Step 2: Convert to fraction form
    66,498.30/99,747.45 = 63,217.80/x
  3. Step 3: Cross multiply
    66,498.30x = 99,747.45 × 63,217.80
  4. Step 4: Simplify right side
    66,498.30x = 6,305,814,344.61
  5. Step 5: Solve for x
    x = 6,305,814,344.61/66,498.30
  6. Step 6: Final answer
    x = 94,826.70

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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.