Home / 81,333.80-112,240.62-45,523.79

Finding the Fourth Proportional to 81,333.80, 112,240.62 and 45,523.79

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Solution

The fourth proportional to 81,333.80, 112,240.62 and 45,523.79 is: 62,822.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,333.80 : 112,240.62 = 45,523.79 : x
  2. Step 2: Convert to fraction form
    81,333.80/112,240.62 = 45,523.79/x
  3. Step 3: Cross multiply
    81,333.80x = 112,240.62 × 45,523.79
  4. Step 4: Simplify right side
    81,333.80x = 5,109,618,694.95
  5. Step 5: Solve for x
    x = 5,109,618,694.95/81,333.80
  6. Step 6: Final answer
    x = 62,822.82

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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.