Home / 45,272.10-67,640.16-43,721.76

Finding the Fourth Proportional to 45,272.10, 67,640.16 and 43,721.76

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Solution

The fourth proportional to 45,272.10, 67,640.16 and 43,721.76 is: 65,323.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,272.10 : 67,640.16 = 43,721.76 : x
  2. Step 2: Convert to fraction form
    45,272.10/67,640.16 = 43,721.76/x
  3. Step 3: Cross multiply
    45,272.10x = 67,640.16 × 43,721.76
  4. Step 4: Simplify right side
    45,272.10x = 2,957,346,841.88
  5. Step 5: Solve for x
    x = 2,957,346,841.88/45,272.10
  6. Step 6: Final answer
    x = 65,323.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.