Home / 81,656.18-112,684.58-45,845.28

Finding the Fourth Proportional to 81,656.18, 112,684.58 and 45,845.28

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Solution

The fourth proportional to 81,656.18, 112,684.58 and 45,845.28 is: 63,265.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,656.18 : 112,684.58 = 45,845.28 : x
  2. Step 2: Convert to fraction form
    81,656.18/112,684.58 = 45,845.28/x
  3. Step 3: Cross multiply
    81,656.18x = 112,684.58 × 45,845.28
  4. Step 4: Simplify right side
    81,656.18x = 5,166,056,121.78
  5. Step 5: Solve for x
    x = 5,166,056,121.78/81,656.18
  6. Step 6: Final answer
    x = 63,265.95

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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.