Home / 74,961.28-112,441.94-19,557.28

Finding the Fourth Proportional to 74,961.28, 112,441.94 and 19,557.28

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Solution

The fourth proportional to 74,961.28, 112,441.94 and 19,557.28 is: 29,335.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,961.28 : 112,441.94 = 19,557.28 : x
  2. Step 2: Convert to fraction form
    74,961.28/112,441.94 = 19,557.28/x
  3. Step 3: Cross multiply
    74,961.28x = 112,441.94 × 19,557.28
  4. Step 4: Simplify right side
    74,961.28x = 2,199,058,620.43
  5. Step 5: Solve for x
    x = 2,199,058,620.43/74,961.28
  6. Step 6: Final answer
    x = 29,335.93

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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.