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Finding the Fourth Proportional to 69,019.92, 95,307.24 and 65,476.96

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Solution

The fourth proportional to 69,019.92, 95,307.24 and 65,476.96 is: 90,414.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,019.92 : 95,307.24 = 65,476.96 : x
  2. Step 2: Convert to fraction form
    69,019.92/95,307.24 = 65,476.96/x
  3. Step 3: Cross multiply
    69,019.92x = 95,307.24 × 65,476.96
  4. Step 4: Simplify right side
    69,019.92x = 6,240,428,341.19
  5. Step 5: Solve for x
    x = 6,240,428,341.19/69,019.92
  6. Step 6: Final answer
    x = 90,414.89

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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.