Home / 81,585.73-112,599.52-45,777.86

Finding the Fourth Proportional to 81,585.73, 112,599.52 and 45,777.86

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Solution

The fourth proportional to 81,585.73, 112,599.52 and 45,777.86 is: 63,179.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,585.73 : 112,599.52 = 45,777.86 : x
  2. Step 2: Convert to fraction form
    81,585.73/112,599.52 = 45,777.86/x
  3. Step 3: Cross multiply
    81,585.73x = 112,599.52 × 45,777.86
  4. Step 4: Simplify right side
    81,585.73x = 5,154,564,807.43
  5. Step 5: Solve for x
    x = 5,154,564,807.43/81,585.73
  6. Step 6: Final answer
    x = 63,179.73

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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.