Home / 81,200.76-112,067.52-45,398.16

Finding the Fourth Proportional to 81,200.76, 112,067.52 and 45,398.16

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Solution

The fourth proportional to 81,200.76, 112,067.52 and 45,398.16 is: 62,655.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,200.76 : 112,067.52 = 45,398.16 : x
  2. Step 2: Convert to fraction form
    81,200.76/112,067.52 = 45,398.16/x
  3. Step 3: Cross multiply
    81,200.76x = 112,067.52 × 45,398.16
  4. Step 4: Simplify right side
    81,200.76x = 5,087,659,203.76
  5. Step 5: Solve for x
    x = 5,087,659,203.76/81,200.76
  6. Step 6: Final answer
    x = 62,655.32

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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.