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Finding the Fourth Proportional to 69,144.80, 103,717.20 and 22,402.40

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Solution

The fourth proportional to 69,144.80, 103,717.20 and 22,402.40 is: 33,603.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,144.80 : 103,717.20 = 22,402.40 : x
  2. Step 2: Convert to fraction form
    69,144.80/103,717.20 = 22,402.40/x
  3. Step 3: Cross multiply
    69,144.80x = 103,717.20 × 22,402.40
  4. Step 4: Simplify right side
    69,144.80x = 2,323,514,201.28
  5. Step 5: Solve for x
    x = 2,323,514,201.28/69,144.80
  6. Step 6: Final answer
    x = 33,603.60

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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.