Home / 88,399.42-121,993.81-48,115.80

Finding the Fourth Proportional to 88,399.42, 121,993.81 and 48,115.80

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Solution

The fourth proportional to 88,399.42, 121,993.81 and 48,115.80 is: 66,401.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,399.42 : 121,993.81 = 48,115.80 : x
  2. Step 2: Convert to fraction form
    88,399.42/121,993.81 = 48,115.80/x
  3. Step 3: Cross multiply
    88,399.42x = 121,993.81 × 48,115.80
  4. Step 4: Simplify right side
    88,399.42x = 5,869,829,642.91
  5. Step 5: Solve for x
    x = 5,869,829,642.91/88,399.42
  6. Step 6: Final answer
    x = 66,401.23

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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.