Home / 79,403.22-109,548.45-48,765.78

Finding the Fourth Proportional to 79,403.22, 109,548.45 and 48,765.78

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Solution

The fourth proportional to 79,403.22, 109,548.45 and 48,765.78 is: 67,279.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,403.22 : 109,548.45 = 48,765.78 : x
  2. Step 2: Convert to fraction form
    79,403.22/109,548.45 = 48,765.78/x
  3. Step 3: Cross multiply
    79,403.22x = 109,548.45 × 48,765.78
  4. Step 4: Simplify right side
    79,403.22x = 5,342,215,612.04
  5. Step 5: Solve for x
    x = 5,342,215,612.04/79,403.22
  6. Step 6: Final answer
    x = 67,279.58

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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.