Home / 55,231.38-76,216.59-31,354.92

Finding the Fourth Proportional to 55,231.38, 76,216.59 and 31,354.92

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Solution

The fourth proportional to 55,231.38, 76,216.59 and 31,354.92 is: 43,268.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,231.38 : 76,216.59 = 31,354.92 : x
  2. Step 2: Convert to fraction form
    55,231.38/76,216.59 = 31,354.92/x
  3. Step 3: Cross multiply
    55,231.38x = 76,216.59 × 31,354.92
  4. Step 4: Simplify right side
    55,231.38x = 2,389,765,082.12
  5. Step 5: Solve for x
    x = 2,389,765,082.12/55,231.38
  6. Step 6: Final answer
    x = 43,268.25

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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.