Home / 56,228.42-77,600.16-31,082.78

Finding the Fourth Proportional to 56,228.42, 77,600.16 and 31,082.78

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Solution

The fourth proportional to 56,228.42, 77,600.16 and 31,082.78 is: 42,896.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,228.42 : 77,600.16 = 31,082.78 : x
  2. Step 2: Convert to fraction form
    56,228.42/77,600.16 = 31,082.78/x
  3. Step 3: Cross multiply
    56,228.42x = 77,600.16 × 31,082.78
  4. Step 4: Simplify right side
    56,228.42x = 2,412,028,701.24
  5. Step 5: Solve for x
    x = 2,412,028,701.24/56,228.42
  6. Step 6: Final answer
    x = 42,896.97

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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.