Home / 88,687.17-122,388.30-66,045.60

Finding the Fourth Proportional to 88,687.17, 122,388.30 and 66,045.60

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Solution

The fourth proportional to 88,687.17, 122,388.30 and 66,045.60 is: 91,142.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,687.17 : 122,388.30 = 66,045.60 : x
  2. Step 2: Convert to fraction form
    88,687.17/122,388.30 = 66,045.60/x
  3. Step 3: Cross multiply
    88,687.17x = 122,388.30 × 66,045.60
  4. Step 4: Simplify right side
    88,687.17x = 8,083,208,706.48
  5. Step 5: Solve for x
    x = 8,083,208,706.48/88,687.17
  6. Step 6: Final answer
    x = 91,142.93

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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.