Home / 75,719.88-113,583.06-28,330.56

Finding the Fourth Proportional to 75,719.88, 113,583.06 and 28,330.56

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Solution

The fourth proportional to 75,719.88, 113,583.06 and 28,330.56 is: 42,497.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,719.88 : 113,583.06 = 28,330.56 : x
  2. Step 2: Convert to fraction form
    75,719.88/113,583.06 = 28,330.56/x
  3. Step 3: Cross multiply
    75,719.88x = 113,583.06 × 28,330.56
  4. Step 4: Simplify right side
    75,719.88x = 3,217,871,696.31
  5. Step 5: Solve for x
    x = 3,217,871,696.31/75,719.88
  6. Step 6: Final answer
    x = 42,497.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.