Home / 91,439.12-126,183.05-51,152.02

Finding the Fourth Proportional to 91,439.12, 126,183.05 and 51,152.02

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Solution

The fourth proportional to 91,439.12, 126,183.05 and 51,152.02 is: 70,588.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,439.12 : 126,183.05 = 51,152.02 : x
  2. Step 2: Convert to fraction form
    91,439.12/126,183.05 = 51,152.02/x
  3. Step 3: Cross multiply
    91,439.12x = 126,183.05 × 51,152.02
  4. Step 4: Simplify right side
    91,439.12x = 6,454,517,709.68
  5. Step 5: Solve for x
    x = 6,454,517,709.68/91,439.12
  6. Step 6: Final answer
    x = 70,588.14

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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.