Home / 89,973.65-124,163.82-49,689.11

Finding the Fourth Proportional to 89,973.65, 124,163.82 and 49,689.11

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Solution

The fourth proportional to 89,973.65, 124,163.82 and 49,689.11 is: 68,571.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,973.65 : 124,163.82 = 49,689.11 : x
  2. Step 2: Convert to fraction form
    89,973.65/124,163.82 = 49,689.11/x
  3. Step 3: Cross multiply
    89,973.65x = 124,163.82 × 49,689.11
  4. Step 4: Simplify right side
    89,973.65x = 6,169,590,020.41
  5. Step 5: Solve for x
    x = 6,169,590,020.41/89,973.65
  6. Step 6: Final answer
    x = 68,571.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.