Home / 84,768.90-126,859.02-52,734.82

Finding the Fourth Proportional to 84,768.90, 126,859.02 and 52,734.82

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Solution

The fourth proportional to 84,768.90, 126,859.02 and 52,734.82 is: 78,919.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,768.90 : 126,859.02 = 52,734.82 : x
  2. Step 2: Convert to fraction form
    84,768.90/126,859.02 = 52,734.82/x
  3. Step 3: Cross multiply
    84,768.90x = 126,859.02 × 52,734.82
  4. Step 4: Simplify right side
    84,768.90x = 6,689,887,585.08
  5. Step 5: Solve for x
    x = 6,689,887,585.08/84,768.90
  6. Step 6: Final answer
    x = 78,919.13

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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.