Home / 74,785.17-112,198.95-30,443.73

Finding the Fourth Proportional to 74,785.17, 112,198.95 and 30,443.73

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Solution

The fourth proportional to 74,785.17, 112,198.95 and 30,443.73 is: 45,674.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,785.17 : 112,198.95 = 30,443.73 : x
  2. Step 2: Convert to fraction form
    74,785.17/112,198.95 = 30,443.73/x
  3. Step 3: Cross multiply
    74,785.17x = 112,198.95 × 30,443.73
  4. Step 4: Simplify right side
    74,785.17x = 3,415,754,540.08
  5. Step 5: Solve for x
    x = 3,415,754,540.08/74,785.17
  6. Step 6: Final answer
    x = 45,674.22

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1.5x scale

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.