Home / 81,199.35-112,053.12-45,393.57

Finding the Fourth Proportional to 81,199.35, 112,053.12 and 45,393.57

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Solution

The fourth proportional to 81,199.35, 112,053.12 and 45,393.57 is: 62,642.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,199.35 : 112,053.12 = 45,393.57 : x
  2. Step 2: Convert to fraction form
    81,199.35/112,053.12 = 45,393.57/x
  3. Step 3: Cross multiply
    81,199.35x = 112,053.12 × 45,393.57
  4. Step 4: Simplify right side
    81,199.35x = 5,086,491,146.44
  5. Step 5: Solve for x
    x = 5,086,491,146.44/81,199.35
  6. Step 6: Final answer
    x = 62,642.02

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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.