Home / 81,557.12-112,475.16-52,847.60

Finding the Fourth Proportional to 81,557.12, 112,475.16 and 52,847.60

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Solution

The fourth proportional to 81,557.12, 112,475.16 and 52,847.60 is: 72,881.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,557.12 : 112,475.16 = 52,847.60 : x
  2. Step 2: Convert to fraction form
    81,557.12/112,475.16 = 52,847.60/x
  3. Step 3: Cross multiply
    81,557.12x = 112,475.16 × 52,847.60
  4. Step 4: Simplify right side
    81,557.12x = 5,944,042,265.62
  5. Step 5: Solve for x
    x = 5,944,042,265.62/81,557.12
  6. Step 6: Final answer
    x = 72,881.95

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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.