Home / 57,113.88-78,817.32-31,963.38

Finding the Fourth Proportional to 57,113.88, 78,817.32 and 31,963.38

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Solution

The fourth proportional to 57,113.88, 78,817.32 and 31,963.38 is: 44,109.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,113.88 : 78,817.32 = 31,963.38 : x
  2. Step 2: Convert to fraction form
    57,113.88/78,817.32 = 31,963.38/x
  3. Step 3: Cross multiply
    57,113.88x = 78,817.32 × 31,963.38
  4. Step 4: Simplify right side
    57,113.88x = 2,519,267,949.74
  5. Step 5: Solve for x
    x = 2,519,267,949.74/57,113.88
  6. Step 6: Final answer
    x = 44,109.56

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1.5x scale

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.