Home / 49,642.46-68,506.76-28,421.90

Finding the Fourth Proportional to 49,642.46, 68,506.76 and 28,421.90

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Solution

The fourth proportional to 49,642.46, 68,506.76 and 28,421.90 is: 39,222.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,642.46 : 68,506.76 = 28,421.90 : x
  2. Step 2: Convert to fraction form
    49,642.46/68,506.76 = 28,421.90/x
  3. Step 3: Cross multiply
    49,642.46x = 68,506.76 × 28,421.90
  4. Step 4: Simplify right side
    49,642.46x = 1,947,092,282.04
  5. Step 5: Solve for x
    x = 1,947,092,282.04/49,642.46
  6. Step 6: Final answer
    x = 39,222.32

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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.