Home / 87,948.09-131,950.08-28,770.30

Finding the Fourth Proportional to 87,948.09, 131,950.08 and 28,770.30

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Solution

The fourth proportional to 87,948.09, 131,950.08 and 28,770.30 is: 43,164.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,948.09 : 131,950.08 = 28,770.30 : x
  2. Step 2: Convert to fraction form
    87,948.09/131,950.08 = 28,770.30/x
  3. Step 3: Cross multiply
    87,948.09x = 131,950.08 × 28,770.30
  4. Step 4: Simplify right side
    87,948.09x = 3,796,243,386.62
  5. Step 5: Solve for x
    x = 3,796,243,386.62/87,948.09
  6. Step 6: Final answer
    x = 43,164.59

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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.