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Finding the Fourth Proportional to 84,077.01, 126,130.50 and 27,920.52

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Solution

The fourth proportional to 84,077.01, 126,130.50 and 27,920.52 is: 41,885.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,077.01 : 126,130.50 = 27,920.52 : x
  2. Step 2: Convert to fraction form
    84,077.01/126,130.50 = 27,920.52/x
  3. Step 3: Cross multiply
    84,077.01x = 126,130.50 × 27,920.52
  4. Step 4: Simplify right side
    84,077.01x = 3,521,629,147.86
  5. Step 5: Solve for x
    x = 3,521,629,147.86/84,077.01
  6. Step 6: Final answer
    x = 41,885.76

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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.