Home / 99,975.79-149,963.66-40,031.24

Finding the Fourth Proportional to 99,975.79, 149,963.66 and 40,031.24

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Solution

The fourth proportional to 99,975.79, 149,963.66 and 40,031.24 is: 60,046.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,975.79 : 149,963.66 = 40,031.24 : x
  2. Step 2: Convert to fraction form
    99,975.79/149,963.66 = 40,031.24/x
  3. Step 3: Cross multiply
    99,975.79x = 149,963.66 × 40,031.24
  4. Step 4: Simplify right side
    99,975.79x = 6,003,231,064.58
  5. Step 5: Solve for x
    x = 6,003,231,064.58/99,975.79
  6. Step 6: Final answer
    x = 60,046.85

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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.