Home / 81,293.54-112,174.35-45,479.66

Finding the Fourth Proportional to 81,293.54, 112,174.35 and 45,479.66

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Solution

The fourth proportional to 81,293.54, 112,174.35 and 45,479.66 is: 62,755.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,293.54 : 112,174.35 = 45,479.66 : x
  2. Step 2: Convert to fraction form
    81,293.54/112,174.35 = 45,479.66/x
  3. Step 3: Cross multiply
    81,293.54x = 112,174.35 × 45,479.66
  4. Step 4: Simplify right side
    81,293.54x = 5,101,651,298.72
  5. Step 5: Solve for x
    x = 5,101,651,298.72/81,293.54
  6. Step 6: Final answer
    x = 62,755.92

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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.