Home / 80,728.64-121,118.91-24,579.62

Finding the Fourth Proportional to 80,728.64, 121,118.91 and 24,579.62

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Solution

The fourth proportional to 80,728.64, 121,118.91 and 24,579.62 is: 36,877.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,728.64 : 121,118.91 = 24,579.62 : x
  2. Step 2: Convert to fraction form
    80,728.64/121,118.91 = 24,579.62/x
  3. Step 3: Cross multiply
    80,728.64x = 121,118.91 × 24,579.62
  4. Step 4: Simplify right side
    80,728.64x = 2,977,056,782.61
  5. Step 5: Solve for x
    x = 2,977,056,782.61/80,728.64
  6. Step 6: Final answer
    x = 36,877.33

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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.