Home / 74,818.64-112,278.78-30,453.46

Finding the Fourth Proportional to 74,818.64, 112,278.78 and 30,453.46

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Solution

The fourth proportional to 74,818.64, 112,278.78 and 30,453.46 is: 45,700.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,818.64 : 112,278.78 = 30,453.46 : x
  2. Step 2: Convert to fraction form
    74,818.64/112,278.78 = 30,453.46/x
  3. Step 3: Cross multiply
    74,818.64x = 112,278.78 × 30,453.46
  4. Step 4: Simplify right side
    74,818.64x = 3,419,276,774.18
  5. Step 5: Solve for x
    x = 3,419,276,774.18/74,818.64
  6. Step 6: Final answer
    x = 45,700.87

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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.