Home / 90,569.82-135,859.05-48,432.54

Finding the Fourth Proportional to 90,569.82, 135,859.05 and 48,432.54

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Solution

The fourth proportional to 90,569.82, 135,859.05 and 48,432.54 is: 72,651.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,569.82 : 135,859.05 = 48,432.54 : x
  2. Step 2: Convert to fraction form
    90,569.82/135,859.05 = 48,432.54/x
  3. Step 3: Cross multiply
    90,569.82x = 135,859.05 × 48,432.54
  4. Step 4: Simplify right side
    90,569.82x = 6,579,998,873.49
  5. Step 5: Solve for x
    x = 6,579,998,873.49/90,569.82
  6. Step 6: Final answer
    x = 72,651.12

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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.