Home / 40,754.92-61,120.20-12,290.68

Finding the Fourth Proportional to 40,754.92, 61,120.20 and 12,290.68

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Solution

The fourth proportional to 40,754.92, 61,120.20 and 12,290.68 is: 18,432.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,754.92 : 61,120.20 = 12,290.68 : x
  2. Step 2: Convert to fraction form
    40,754.92/61,120.20 = 12,290.68/x
  3. Step 3: Cross multiply
    40,754.92x = 61,120.20 × 12,290.68
  4. Step 4: Simplify right side
    40,754.92x = 751,208,819.74
  5. Step 5: Solve for x
    x = 751,208,819.74/40,754.92
  6. Step 6: Final answer
    x = 18,432.35

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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.