Home / 76,721.36-115,035.96-29,996.24

Finding the Fourth Proportional to 76,721.36, 115,035.96 and 29,996.24

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Solution

The fourth proportional to 76,721.36, 115,035.96 and 29,996.24 is: 44,976.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,721.36 : 115,035.96 = 29,996.24 : x
  2. Step 2: Convert to fraction form
    76,721.36/115,035.96 = 29,996.24/x
  3. Step 3: Cross multiply
    76,721.36x = 115,035.96 × 29,996.24
  4. Step 4: Simplify right side
    76,721.36x = 3,450,646,264.79
  5. Step 5: Solve for x
    x = 3,450,646,264.79/76,721.36
  6. Step 6: Final answer
    x = 44,976.34

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1.5x scale

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.