Home / 55,047.40-75,967.20-31,173.56

Finding the Fourth Proportional to 55,047.40, 75,967.20 and 31,173.56

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Solution

The fourth proportional to 55,047.40, 75,967.20 and 31,173.56 is: 43,020.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,047.40 : 75,967.20 = 31,173.56 : x
  2. Step 2: Convert to fraction form
    55,047.40/75,967.20 = 31,173.56/x
  3. Step 3: Cross multiply
    55,047.40x = 75,967.20 × 31,173.56
  4. Step 4: Simplify right side
    55,047.40x = 2,368,168,067.23
  5. Step 5: Solve for x
    x = 2,368,168,067.23/55,047.40
  6. Step 6: Final answer
    x = 43,020.53

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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.