Home / 75,002.45-112,503.78-30,629.21

Finding the Fourth Proportional to 75,002.45, 112,503.78 and 30,629.21

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Solution

The fourth proportional to 75,002.45, 112,503.78 and 30,629.21 is: 45,943.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,002.45 : 112,503.78 = 30,629.21 : x
  2. Step 2: Convert to fraction form
    75,002.45/112,503.78 = 30,629.21/x
  3. Step 3: Cross multiply
    75,002.45x = 112,503.78 × 30,629.21
  4. Step 4: Simplify right side
    75,002.45x = 3,445,901,340.89
  5. Step 5: Solve for x
    x = 3,445,901,340.89/75,002.45
  6. Step 6: Final answer
    x = 45,943.85

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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.