Home / 80,515.10-120,772.91-27,924.59

Finding the Fourth Proportional to 80,515.10, 120,772.91 and 27,924.59

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Solution

The fourth proportional to 80,515.10, 120,772.91 and 27,924.59 is: 41,886.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,515.10 : 120,772.91 = 27,924.59 : x
  2. Step 2: Convert to fraction form
    80,515.10/120,772.91 = 27,924.59/x
  3. Step 3: Cross multiply
    80,515.10x = 120,772.91 × 27,924.59
  4. Step 4: Simplify right side
    80,515.10x = 3,372,533,994.86
  5. Step 5: Solve for x
    x = 3,372,533,994.86/80,515.10
  6. Step 6: Final answer
    x = 41,886.98

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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.