Home / 49,902.39-68,862.88-28,390.11

Finding the Fourth Proportional to 49,902.39, 68,862.88 and 28,390.11

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Solution

The fourth proportional to 49,902.39, 68,862.88 and 28,390.11 is: 39,176.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,902.39 : 68,862.88 = 28,390.11 : x
  2. Step 2: Convert to fraction form
    49,902.39/68,862.88 = 28,390.11/x
  3. Step 3: Cross multiply
    49,902.39x = 68,862.88 × 28,390.11
  4. Step 4: Simplify right side
    49,902.39x = 1,955,024,738.12
  5. Step 5: Solve for x
    x = 1,955,024,738.12/49,902.39
  6. Step 6: Final answer
    x = 39,176.98

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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.