Home / 77,780.98-116,690.10-25,190.56

Finding the Fourth Proportional to 77,780.98, 116,690.10 and 25,190.56

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Solution

The fourth proportional to 77,780.98, 116,690.10 and 25,190.56 is: 37,791.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,780.98 : 116,690.10 = 25,190.56 : x
  2. Step 2: Convert to fraction form
    77,780.98/116,690.10 = 25,190.56/x
  3. Step 3: Cross multiply
    77,780.98x = 116,690.10 × 25,190.56
  4. Step 4: Simplify right side
    77,780.98x = 2,939,488,965.46
  5. Step 5: Solve for x
    x = 2,939,488,965.46/77,780.98
  6. Step 6: Final answer
    x = 37,791.87

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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.