Home / 81,338.88-112,242.44-45,037.92

Finding the Fourth Proportional to 81,338.88, 112,242.44 and 45,037.92

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Solution

The fourth proportional to 81,338.88, 112,242.44 and 45,037.92 is: 62,149.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,338.88 : 112,242.44 = 45,037.92 : x
  2. Step 2: Convert to fraction form
    81,338.88/112,242.44 = 45,037.92/x
  3. Step 3: Cross multiply
    81,338.88x = 112,242.44 × 45,037.92
  4. Step 4: Simplify right side
    81,338.88x = 5,055,166,033.32
  5. Step 5: Solve for x
    x = 5,055,166,033.32/81,338.88
  6. Step 6: Final answer
    x = 62,149.44

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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.