Home / 99,318.78-148,912.41-39,307.50

Finding the Fourth Proportional to 99,318.78, 148,912.41 and 39,307.50

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Solution

The fourth proportional to 99,318.78, 148,912.41 and 39,307.50 is: 58,935.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,318.78 : 148,912.41 = 39,307.50 : x
  2. Step 2: Convert to fraction form
    99,318.78/148,912.41 = 39,307.50/x
  3. Step 3: Cross multiply
    99,318.78x = 148,912.41 × 39,307.50
  4. Step 4: Simplify right side
    99,318.78x = 5,853,374,556.08
  5. Step 5: Solve for x
    x = 5,853,374,556.08/99,318.78
  6. Step 6: Final answer
    x = 58,935.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.