Home / 51,311.88-70,822.20-30,097.98

Finding the Fourth Proportional to 51,311.88, 70,822.20 and 30,097.98

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Solution

The fourth proportional to 51,311.88, 70,822.20 and 30,097.98 is: 41,542.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,311.88 : 70,822.20 = 30,097.98 : x
  2. Step 2: Convert to fraction form
    51,311.88/70,822.20 = 30,097.98/x
  3. Step 3: Cross multiply
    51,311.88x = 70,822.20 × 30,097.98
  4. Step 4: Simplify right side
    51,311.88x = 2,131,605,159.16
  5. Step 5: Solve for x
    x = 2,131,605,159.16/51,311.88
  6. Step 6: Final answer
    x = 41,542.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.