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Finding the Fourth Proportional to 69,104.48, 95,360.64 and 38,890.40

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Solution

The fourth proportional to 69,104.48, 95,360.64 and 38,890.40 is: 53,666.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,104.48 : 95,360.64 = 38,890.40 : x
  2. Step 2: Convert to fraction form
    69,104.48/95,360.64 = 38,890.40/x
  3. Step 3: Cross multiply
    69,104.48x = 95,360.64 × 38,890.40
  4. Step 4: Simplify right side
    69,104.48x = 3,708,613,433.86
  5. Step 5: Solve for x
    x = 3,708,613,433.86/69,104.48
  6. Step 6: Final answer
    x = 53,666.76

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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.