Home / 57,055.68-78,734.70-31,910.04

Finding the Fourth Proportional to 57,055.68, 78,734.70 and 31,910.04

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Solution

The fourth proportional to 57,055.68, 78,734.70 and 31,910.04 is: 44,034.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,055.68 : 78,734.70 = 31,910.04 : x
  2. Step 2: Convert to fraction form
    57,055.68/78,734.70 = 31,910.04/x
  3. Step 3: Cross multiply
    57,055.68x = 78,734.70 × 31,910.04
  4. Step 4: Simplify right side
    57,055.68x = 2,512,427,426.39
  5. Step 5: Solve for x
    x = 2,512,427,426.39/57,055.68
  6. Step 6: Final answer
    x = 44,034.66

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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.