Home / 74,689.20-112,033.32-30,305.52

Finding the Fourth Proportional to 74,689.20, 112,033.32 and 30,305.52

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Solution

The fourth proportional to 74,689.20, 112,033.32 and 30,305.52 is: 45,458.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,689.20 : 112,033.32 = 30,305.52 : x
  2. Step 2: Convert to fraction form
    74,689.20/112,033.32 = 30,305.52/x
  3. Step 3: Cross multiply
    74,689.20x = 112,033.32 × 30,305.52
  4. Step 4: Simplify right side
    74,689.20x = 3,395,228,019.93
  5. Step 5: Solve for x
    x = 3,395,228,019.93/74,689.20
  6. Step 6: Final answer
    x = 45,458.09

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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.