Home / 77,933.88-116,872.08-28,000.57

Finding the Fourth Proportional to 77,933.88, 116,872.08 and 28,000.57

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Solution

The fourth proportional to 77,933.88, 116,872.08 and 28,000.57 is: 41,990.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,933.88 : 116,872.08 = 28,000.57 : x
  2. Step 2: Convert to fraction form
    77,933.88/116,872.08 = 28,000.57/x
  3. Step 3: Cross multiply
    77,933.88x = 116,872.08 × 28,000.57
  4. Step 4: Simplify right side
    77,933.88x = 3,272,484,857.09
  5. Step 5: Solve for x
    x = 3,272,484,857.09/77,933.88
  6. Step 6: Final answer
    x = 41,990.53

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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.