Home / 87,931.84-131,913.96-28,770.82

Finding the Fourth Proportional to 87,931.84, 131,913.96 and 28,770.82

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Solution

The fourth proportional to 87,931.84, 131,913.96 and 28,770.82 is: 43,161.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,931.84 : 131,913.96 = 28,770.82 : x
  2. Step 2: Convert to fraction form
    87,931.84/131,913.96 = 28,770.82/x
  3. Step 3: Cross multiply
    87,931.84x = 131,913.96 × 28,770.82
  4. Step 4: Simplify right side
    87,931.84x = 3,795,272,798.65
  5. Step 5: Solve for x
    x = 3,795,272,798.65/87,931.84
  6. Step 6: Final answer
    x = 43,161.53

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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.