Home / 42,642.60-63,880.77-25,961.26

Finding the Fourth Proportional to 42,642.60, 63,880.77 and 25,961.26

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Solution

The fourth proportional to 42,642.60, 63,880.77 and 25,961.26 is: 38,891.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,642.60 : 63,880.77 = 25,961.26 : x
  2. Step 2: Convert to fraction form
    42,642.60/63,880.77 = 25,961.26/x
  3. Step 3: Cross multiply
    42,642.60x = 63,880.77 × 25,961.26
  4. Step 4: Simplify right side
    42,642.60x = 1,658,425,278.97
  5. Step 5: Solve for x
    x = 1,658,425,278.97/42,642.60
  6. Step 6: Final answer
    x = 38,891.28

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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.