Home / 57,152.95-78,871.07-31,660.97

Finding the Fourth Proportional to 57,152.95, 78,871.07 and 31,660.97

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Solution

The fourth proportional to 57,152.95, 78,871.07 and 31,660.97 is: 43,692.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,152.95 : 78,871.07 = 31,660.97 : x
  2. Step 2: Convert to fraction form
    57,152.95/78,871.07 = 31,660.97/x
  3. Step 3: Cross multiply
    57,152.95x = 78,871.07 × 31,660.97
  4. Step 4: Simplify right side
    57,152.95x = 2,497,134,476.04
  5. Step 5: Solve for x
    x = 2,497,134,476.04/57,152.95
  6. Step 6: Final answer
    x = 43,692.13

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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.