Home / 172,320.30-258,480.54-54,000.90

Finding the Fourth Proportional to 172,320.30, 258,480.54 and 54,000.90

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Solution

The fourth proportional to 172,320.30, 258,480.54 and 54,000.90 is: 81,001.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,320.30 : 258,480.54 = 54,000.90 : x
  2. Step 2: Convert to fraction form
    172,320.30/258,480.54 = 54,000.90/x
  3. Step 3: Cross multiply
    172,320.30x = 258,480.54 × 54,000.90
  4. Step 4: Simplify right side
    172,320.30x = 13,958,181,792.49
  5. Step 5: Solve for x
    x = 13,958,181,792.49/172,320.30
  6. Step 6: Final answer
    x = 81,001.38

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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.