Home / 57,251.24-78,915.40-45,131.96

Finding the Fourth Proportional to 57,251.24, 78,915.40 and 45,131.96

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Solution

The fourth proportional to 57,251.24, 78,915.40 and 45,131.96 is: 62,210.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,251.24 : 78,915.40 = 45,131.96 : x
  2. Step 2: Convert to fraction form
    57,251.24/78,915.40 = 45,131.96/x
  3. Step 3: Cross multiply
    57,251.24x = 78,915.40 × 45,131.96
  4. Step 4: Simplify right side
    57,251.24x = 3,561,606,676.18
  5. Step 5: Solve for x
    x = 3,561,606,676.18/57,251.24
  6. Step 6: Final answer
    x = 62,210.12

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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.