Home / 81,288.43-112,173.45-44,987.87

Finding the Fourth Proportional to 81,288.43, 112,173.45 and 44,987.87

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Solution

The fourth proportional to 81,288.43, 112,173.45 and 44,987.87 is: 62,080.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,288.43 : 112,173.45 = 44,987.87 : x
  2. Step 2: Convert to fraction form
    81,288.43/112,173.45 = 44,987.87/x
  3. Step 3: Cross multiply
    81,288.43x = 112,173.45 × 44,987.87
  4. Step 4: Simplify right side
    81,288.43x = 5,046,444,586.05
  5. Step 5: Solve for x
    x = 5,046,444,586.05/81,288.43
  6. Step 6: Final answer
    x = 62,080.72

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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.