Home / 80,850.89-111,574.29-45,040.99

Finding the Fourth Proportional to 80,850.89, 111,574.29 and 45,040.99

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Solution

The fourth proportional to 80,850.89, 111,574.29 and 45,040.99 is: 62,156.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,850.89 : 111,574.29 = 45,040.99 : x
  2. Step 2: Convert to fraction form
    80,850.89/111,574.29 = 45,040.99/x
  3. Step 3: Cross multiply
    80,850.89x = 111,574.29 × 45,040.99
  4. Step 4: Simplify right side
    80,850.89x = 5,025,416,480.15
  5. Step 5: Solve for x
    x = 5,025,416,480.15/80,850.89
  6. Step 6: Final answer
    x = 62,156.60

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1.5x scale

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.