Home / 81,056.46-121,627.50-57,516.12

Finding the Fourth Proportional to 81,056.46, 121,627.50 and 57,516.12

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Solution

The fourth proportional to 81,056.46, 121,627.50 and 57,516.12 is: 86,304.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,056.46 : 121,627.50 = 57,516.12 : x
  2. Step 2: Convert to fraction form
    81,056.46/121,627.50 = 57,516.12/x
  3. Step 3: Cross multiply
    81,056.46x = 121,627.50 × 57,516.12
  4. Step 4: Simplify right side
    81,056.46x = 6,995,541,885.30
  5. Step 5: Solve for x
    x = 6,995,541,885.30/81,056.46
  6. Step 6: Final answer
    x = 86,304.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.