Home / 172,899.10-259,385.10-54,582.40

Finding the Fourth Proportional to 172,899.10, 259,385.10 and 54,582.40

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Solution

The fourth proportional to 172,899.10, 259,385.10 and 54,582.40 is: 81,885.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,899.10 : 259,385.10 = 54,582.40 : x
  2. Step 2: Convert to fraction form
    172,899.10/259,385.10 = 54,582.40/x
  3. Step 3: Cross multiply
    172,899.10x = 259,385.10 × 54,582.40
  4. Step 4: Simplify right side
    172,899.10x = 14,157,861,282.24
  5. Step 5: Solve for x
    x = 14,157,861,282.24/172,899.10
  6. Step 6: Final answer
    x = 81,885.11

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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.