Home / 91,439.64-126,183.76-51,152.53

Finding the Fourth Proportional to 91,439.64, 126,183.76 and 51,152.53

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Solution

The fourth proportional to 91,439.64, 126,183.76 and 51,152.53 is: 70,588.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,439.64 : 126,183.76 = 51,152.53 : x
  2. Step 2: Convert to fraction form
    91,439.64/126,183.76 = 51,152.53/x
  3. Step 3: Cross multiply
    91,439.64x = 126,183.76 × 51,152.53
  4. Step 4: Simplify right side
    91,439.64x = 6,454,618,649.90
  5. Step 5: Solve for x
    x = 6,454,618,649.90/91,439.64
  6. Step 6: Final answer
    x = 70,588.85

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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.