Home / 76,754.37-115,122.14-20,598.90

Finding the Fourth Proportional to 76,754.37, 115,122.14 and 20,598.90

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Solution

The fourth proportional to 76,754.37, 115,122.14 and 20,598.90 is: 30,895.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,754.37 : 115,122.14 = 20,598.90 : x
  2. Step 2: Convert to fraction form
    76,754.37/115,122.14 = 20,598.90/x
  3. Step 3: Cross multiply
    76,754.37x = 115,122.14 × 20,598.90
  4. Step 4: Simplify right side
    76,754.37x = 2,371,389,449.65
  5. Step 5: Solve for x
    x = 2,371,389,449.65/76,754.37
  6. Step 6: Final answer
    x = 30,895.82

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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.