Home / 80,432.73-120,669.60-56,786.35

Finding the Fourth Proportional to 80,432.73, 120,669.60 and 56,786.35

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Solution

The fourth proportional to 80,432.73, 120,669.60 and 56,786.35 is: 85,193.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,432.73 : 120,669.60 = 56,786.35 : x
  2. Step 2: Convert to fraction form
    80,432.73/120,669.60 = 56,786.35/x
  3. Step 3: Cross multiply
    80,432.73x = 120,669.60 × 56,786.35
  4. Step 4: Simplify right side
    80,432.73x = 6,852,385,252.68
  5. Step 5: Solve for x
    x = 6,852,385,252.68/80,432.73
  6. Step 6: Final answer
    x = 85,193.99

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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.