Home / 73,000.38-109,515.17-30,880.28

Finding the Fourth Proportional to 73,000.38, 109,515.17 and 30,880.28

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Solution

The fourth proportional to 73,000.38, 109,515.17 and 30,880.28 is: 46,326.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,000.38 : 109,515.17 = 30,880.28 : x
  2. Step 2: Convert to fraction form
    73,000.38/109,515.17 = 30,880.28/x
  3. Step 3: Cross multiply
    73,000.38x = 109,515.17 × 30,880.28
  4. Step 4: Simplify right side
    73,000.38x = 3,381,859,113.85
  5. Step 5: Solve for x
    x = 3,381,859,113.85/73,000.38
  6. Step 6: Final answer
    x = 46,326.60

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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.