Home / 81,741.24-112,805.76-45,930.48

Finding the Fourth Proportional to 81,741.24, 112,805.76 and 45,930.48

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Solution

The fourth proportional to 81,741.24, 112,805.76 and 45,930.48 is: 63,385.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,741.24 : 112,805.76 = 45,930.48 : x
  2. Step 2: Convert to fraction form
    81,741.24/112,805.76 = 45,930.48/x
  3. Step 3: Cross multiply
    81,741.24x = 112,805.76 × 45,930.48
  4. Step 4: Simplify right side
    81,741.24x = 5,181,222,703.56
  5. Step 5: Solve for x
    x = 5,181,222,703.56/81,741.24
  6. Step 6: Final answer
    x = 63,385.66

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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.