Home / 91,610.46-137,368.26-54,181.98

Finding the Fourth Proportional to 91,610.46, 137,368.26 and 54,181.98

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Solution

The fourth proportional to 91,610.46, 137,368.26 and 54,181.98 is: 81,244.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,610.46 : 137,368.26 = 54,181.98 : x
  2. Step 2: Convert to fraction form
    91,610.46/137,368.26 = 54,181.98/x
  3. Step 3: Cross multiply
    91,610.46x = 137,368.26 × 54,181.98
  4. Step 4: Simplify right side
    91,610.46x = 7,442,884,315.95
  5. Step 5: Solve for x
    x = 7,442,884,315.95/91,610.46
  6. Step 6: Final answer
    x = 81,244.92

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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.