Home / 75,517.28-104,162.88-57,570.56

Finding the Fourth Proportional to 75,517.28, 104,162.88 and 57,570.56

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Solution

The fourth proportional to 75,517.28, 104,162.88 and 57,570.56 is: 79,408.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,517.28 : 104,162.88 = 57,570.56 : x
  2. Step 2: Convert to fraction form
    75,517.28/104,162.88 = 57,570.56/x
  3. Step 3: Cross multiply
    75,517.28x = 104,162.88 × 57,570.56
  4. Step 4: Simplify right side
    75,517.28x = 5,996,715,332.81
  5. Step 5: Solve for x
    x = 5,996,715,332.81/75,517.28
  6. Step 6: Final answer
    x = 79,408.52

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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.