Home / 75,263.34-103,817.78-49,769.58

Finding the Fourth Proportional to 75,263.34, 103,817.78 and 49,769.58

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Solution

The fourth proportional to 75,263.34, 103,817.78 and 49,769.58 is: 68,651.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,263.34 : 103,817.78 = 49,769.58 : x
  2. Step 2: Convert to fraction form
    75,263.34/103,817.78 = 49,769.58/x
  3. Step 3: Cross multiply
    75,263.34x = 103,817.78 × 49,769.58
  4. Step 4: Simplify right side
    75,263.34x = 5,166,967,307.13
  5. Step 5: Solve for x
    x = 5,166,967,307.13/75,263.34
  6. Step 6: Final answer
    x = 68,651.85

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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.