Home / 56,370.33-77,790.11-31,219.29

Finding the Fourth Proportional to 56,370.33, 77,790.11 and 31,219.29

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Solution

The fourth proportional to 56,370.33, 77,790.11 and 31,219.29 is: 43,082.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,370.33 : 77,790.11 = 31,219.29 : x
  2. Step 2: Convert to fraction form
    56,370.33/77,790.11 = 31,219.29/x
  3. Step 3: Cross multiply
    56,370.33x = 77,790.11 × 31,219.29
  4. Step 4: Simplify right side
    56,370.33x = 2,428,551,847.13
  5. Step 5: Solve for x
    x = 2,428,551,847.13/56,370.33
  6. Step 6: Final answer
    x = 43,082.09

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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.