Home / 42,422.67-63,633.60-25,787.30

Finding the Fourth Proportional to 42,422.67, 63,633.60 and 25,787.30

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Solution

The fourth proportional to 42,422.67, 63,633.60 and 25,787.30 is: 38,680.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,422.67 : 63,633.60 = 25,787.30 : x
  2. Step 2: Convert to fraction form
    42,422.67/63,633.60 = 25,787.30/x
  3. Step 3: Cross multiply
    42,422.67x = 63,633.60 × 25,787.30
  4. Step 4: Simplify right side
    42,422.67x = 1,640,938,415.11
  5. Step 5: Solve for x
    x = 1,640,938,415.11/42,422.67
  6. Step 6: Final answer
    x = 38,680.70

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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.