Home / 81,634.59-112,654.78-45,823.68

Finding the Fourth Proportional to 81,634.59, 112,654.78 and 45,823.68

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Solution

The fourth proportional to 81,634.59, 112,654.78 and 45,823.68 is: 63,236.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,634.59 : 112,654.78 = 45,823.68 : x
  2. Step 2: Convert to fraction form
    81,634.59/112,654.78 = 45,823.68/x
  3. Step 3: Cross multiply
    81,634.59x = 112,654.78 × 45,823.68
  4. Step 4: Simplify right side
    81,634.59x = 5,162,256,474.63
  5. Step 5: Solve for x
    x = 5,162,256,474.63/81,634.59
  6. Step 6: Final answer
    x = 63,236.14

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1.5x scale

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.