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Finding the Fourth Proportional to 69,630.62, 96,132.14 and 65,645.42

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Solution

The fourth proportional to 69,630.62, 96,132.14 and 65,645.42 is: 90,630.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,630.62 : 96,132.14 = 65,645.42 : x
  2. Step 2: Convert to fraction form
    69,630.62/96,132.14 = 65,645.42/x
  3. Step 3: Cross multiply
    69,630.62x = 96,132.14 × 65,645.42
  4. Step 4: Simplify right side
    69,630.62x = 6,310,634,705.80
  5. Step 5: Solve for x
    x = 6,310,634,705.80/69,630.62
  6. Step 6: Final answer
    x = 90,630.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.