Home / 77,230.12-115,822.80-23,192.62

Finding the Fourth Proportional to 77,230.12, 115,822.80 and 23,192.62

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Solution

The fourth proportional to 77,230.12, 115,822.80 and 23,192.62 is: 34,782.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,230.12 : 115,822.80 = 23,192.62 : x
  2. Step 2: Convert to fraction form
    77,230.12/115,822.80 = 23,192.62/x
  3. Step 3: Cross multiply
    77,230.12x = 115,822.80 × 23,192.62
  4. Step 4: Simplify right side
    77,230.12x = 2,686,234,215.78
  5. Step 5: Solve for x
    x = 2,686,234,215.78/77,230.12
  6. Step 6: Final answer
    x = 34,782.21

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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.