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Finding the Fourth Proportional to 90,097.94, 124,329.80 and 49,809.29

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Solution

The fourth proportional to 90,097.94, 124,329.80 and 49,809.29 is: 68,733.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,097.94 : 124,329.80 = 49,809.29 : x
  2. Step 2: Convert to fraction form
    90,097.94/124,329.80 = 49,809.29/x
  3. Step 3: Cross multiply
    90,097.94x = 124,329.80 × 49,809.29
  4. Step 4: Simplify right side
    90,097.94x = 6,192,778,193.15
  5. Step 5: Solve for x
    x = 6,192,778,193.15/90,097.94
  6. Step 6: Final answer
    x = 68,733.85

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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.