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Finding the Fourth Proportional to 79,228.26, 109,335.06 and 47,404.71

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Solution

The fourth proportional to 79,228.26, 109,335.06 and 47,404.71 is: 65,418.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,228.26 : 109,335.06 = 47,404.71 : x
  2. Step 2: Convert to fraction form
    79,228.26/109,335.06 = 47,404.71/x
  3. Step 3: Cross multiply
    79,228.26x = 109,335.06 × 47,404.71
  4. Step 4: Simplify right side
    79,228.26x = 5,182,996,812.13
  5. Step 5: Solve for x
    x = 5,182,996,812.13/79,228.26
  6. Step 6: Final answer
    x = 65,418.54

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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.