Home / 81,275.60-112,171.64-45,468.03

Finding the Fourth Proportional to 81,275.60, 112,171.64 and 45,468.03

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Solution

The fourth proportional to 81,275.60, 112,171.64 and 45,468.03 is: 62,752.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,275.60 : 112,171.64 = 45,468.03 : x
  2. Step 2: Convert to fraction form
    81,275.60/112,171.64 = 45,468.03/x
  3. Step 3: Cross multiply
    81,275.60x = 112,171.64 × 45,468.03
  4. Step 4: Simplify right side
    81,275.60x = 5,100,223,685.97
  5. Step 5: Solve for x
    x = 5,100,223,685.97/81,275.60
  6. Step 6: Final answer
    x = 62,752.21

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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.