Home / 90,816.66-136,205.55-38,212.02

Finding the Fourth Proportional to 90,816.66, 136,205.55 and 38,212.02

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Solution

The fourth proportional to 90,816.66, 136,205.55 and 38,212.02 is: 57,309.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,816.66 : 136,205.55 = 38,212.02 : x
  2. Step 2: Convert to fraction form
    90,816.66/136,205.55 = 38,212.02/x
  3. Step 3: Cross multiply
    90,816.66x = 136,205.55 × 38,212.02
  4. Step 4: Simplify right side
    90,816.66x = 5,204,689,200.71
  5. Step 5: Solve for x
    x = 5,204,689,200.71/90,816.66
  6. Step 6: Final answer
    x = 57,309.85

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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.