Home / 80,962.80-121,444.20-25,558.80

Finding the Fourth Proportional to 80,962.80, 121,444.20 and 25,558.80

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Solution

The fourth proportional to 80,962.80, 121,444.20 and 25,558.80 is: 38,338.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,962.80 : 121,444.20 = 25,558.80 : x
  2. Step 2: Convert to fraction form
    80,962.80/121,444.20 = 25,558.80/x
  3. Step 3: Cross multiply
    80,962.80x = 121,444.20 × 25,558.80
  4. Step 4: Simplify right side
    80,962.80x = 3,103,968,018.96
  5. Step 5: Solve for x
    x = 3,103,968,018.96/80,962.80
  6. Step 6: Final answer
    x = 38,338.20

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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.