Home / 81,408.60-112,340.54-45,598.04

Finding the Fourth Proportional to 81,408.60, 112,340.54 and 45,598.04

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Solution

The fourth proportional to 81,408.60, 112,340.54 and 45,598.04 is: 62,923.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,408.60 : 112,340.54 = 45,598.04 : x
  2. Step 2: Convert to fraction form
    81,408.60/112,340.54 = 45,598.04/x
  3. Step 3: Cross multiply
    81,408.60x = 112,340.54 × 45,598.04
  4. Step 4: Simplify right side
    81,408.60x = 5,122,508,436.54
  5. Step 5: Solve for x
    x = 5,122,508,436.54/81,408.60
  6. Step 6: Final answer
    x = 62,923.43

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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.