Home / 99,089.78-148,639.54-39,917.44

Finding the Fourth Proportional to 99,089.78, 148,639.54 and 39,917.44

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Solution

The fourth proportional to 99,089.78, 148,639.54 and 39,917.44 is: 59,878.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,089.78 : 148,639.54 = 39,917.44 : x
  2. Step 2: Convert to fraction form
    99,089.78/148,639.54 = 39,917.44/x
  3. Step 3: Cross multiply
    99,089.78x = 148,639.54 × 39,917.44
  4. Step 4: Simplify right side
    99,089.78x = 5,933,309,919.58
  5. Step 5: Solve for x
    x = 5,933,309,919.58/99,089.78
  6. Step 6: Final answer
    x = 59,878.12

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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.