Home / 81,726.24-112,793.58-45,919.02

Finding the Fourth Proportional to 81,726.24, 112,793.58 and 45,919.02

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Solution

The fourth proportional to 81,726.24, 112,793.58 and 45,919.02 is: 63,374.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,726.24 : 112,793.58 = 45,919.02 : x
  2. Step 2: Convert to fraction form
    81,726.24/112,793.58 = 45,919.02/x
  3. Step 3: Cross multiply
    81,726.24x = 112,793.58 × 45,919.02
  4. Step 4: Simplify right side
    81,726.24x = 5,179,370,655.89
  5. Step 5: Solve for x
    x = 5,179,370,655.89/81,726.24
  6. Step 6: Final answer
    x = 63,374.64

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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.