Home / 57,183.13-78,912.08-31,341.89

Finding the Fourth Proportional to 57,183.13, 78,912.08 and 31,341.89

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Solution

The fourth proportional to 57,183.13, 78,912.08 and 31,341.89 is: 43,251.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,183.13 : 78,912.08 = 31,341.89 : x
  2. Step 2: Convert to fraction form
    57,183.13/78,912.08 = 31,341.89/x
  3. Step 3: Cross multiply
    57,183.13x = 78,912.08 × 31,341.89
  4. Step 4: Simplify right side
    57,183.13x = 2,473,253,731.03
  5. Step 5: Solve for x
    x = 2,473,253,731.03/57,183.13
  6. Step 6: Final answer
    x = 43,251.46

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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.