Home / 85,326.38-127,989.10-22,146.46

Finding the Fourth Proportional to 85,326.38, 127,989.10 and 22,146.46

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Solution

The fourth proportional to 85,326.38, 127,989.10 and 22,146.46 is: 33,219.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,326.38 : 127,989.10 = 22,146.46 : x
  2. Step 2: Convert to fraction form
    85,326.38/127,989.10 = 22,146.46/x
  3. Step 3: Cross multiply
    85,326.38x = 127,989.10 × 22,146.46
  4. Step 4: Simplify right side
    85,326.38x = 2,834,505,483.59
  5. Step 5: Solve for x
    x = 2,834,505,483.59/85,326.38
  6. Step 6: Final answer
    x = 33,219.57

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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.