Home / 55,040.05-75,968.88-31,180.79

Finding the Fourth Proportional to 55,040.05, 75,968.88 and 31,180.79

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Solution

The fourth proportional to 55,040.05, 75,968.88 and 31,180.79 is: 43,037.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,040.05 : 75,968.88 = 31,180.79 : x
  2. Step 2: Convert to fraction form
    55,040.05/75,968.88 = 31,180.79/x
  3. Step 3: Cross multiply
    55,040.05x = 75,968.88 × 31,180.79
  4. Step 4: Simplify right side
    55,040.05x = 2,368,769,693.82
  5. Step 5: Solve for x
    x = 2,368,769,693.82/55,040.05
  6. Step 6: Final answer
    x = 43,037.20

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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.