Home / 99,965.94-149,948.88-40,021.39

Finding the Fourth Proportional to 99,965.94, 149,948.88 and 40,021.39

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Solution

The fourth proportional to 99,965.94, 149,948.88 and 40,021.39 is: 60,032.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,965.94 : 149,948.88 = 40,021.39 : x
  2. Step 2: Convert to fraction form
    99,965.94/149,948.88 = 40,021.39/x
  3. Step 3: Cross multiply
    99,965.94x = 149,948.88 × 40,021.39
  4. Step 4: Simplify right side
    99,965.94x = 6,001,162,606.54
  5. Step 5: Solve for x
    x = 6,001,162,606.54/99,965.94
  6. Step 6: Final answer
    x = 60,032.07

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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.