Home / 77,384.89-115,995.12-49,216.33

Finding the Fourth Proportional to 77,384.89, 115,995.12 and 49,216.33

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Solution

The fourth proportional to 77,384.89, 115,995.12 and 49,216.33 is: 73,772.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,384.89 : 115,995.12 = 49,216.33 : x
  2. Step 2: Convert to fraction form
    77,384.89/115,995.12 = 49,216.33/x
  3. Step 3: Cross multiply
    77,384.89x = 115,995.12 × 49,216.33
  4. Step 4: Simplify right side
    77,384.89x = 5,708,854,104.31
  5. Step 5: Solve for x
    x = 5,708,854,104.31/77,384.89
  6. Step 6: Final answer
    x = 73,772.21

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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.