Home / 57,026.95-78,694-31,531.84

Finding the Fourth Proportional to 57,026.95, 78,694 and 31,531.84

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Solution

The fourth proportional to 57,026.95, 78,694 and 31,531.84 is: 43,512.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,026.95 : 78,694 = 31,531.84 : x
  2. Step 2: Convert to fraction form
    57,026.95/78,694 = 31,531.84/x
  3. Step 3: Cross multiply
    57,026.95x = 78,694 × 31,531.84
  4. Step 4: Simplify right side
    57,026.95x = 2,481,366,616.96
  5. Step 5: Solve for x
    x = 2,481,366,616.96/57,026.95
  6. Step 6: Final answer
    x = 43,512.17

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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.