Home / 71,715.02-107,571.83-43,643.05

Finding the Fourth Proportional to 71,715.02, 107,571.83 and 43,643.05

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Solution

The fourth proportional to 71,715.02, 107,571.83 and 43,643.05 is: 65,464.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,715.02 : 107,571.83 = 43,643.05 : x
  2. Step 2: Convert to fraction form
    71,715.02/107,571.83 = 43,643.05/x
  3. Step 3: Cross multiply
    71,715.02x = 107,571.83 × 43,643.05
  4. Step 4: Simplify right side
    71,715.02x = 4,694,762,268.14
  5. Step 5: Solve for x
    x = 4,694,762,268.14/71,715.02
  6. Step 6: Final answer
    x = 65,464.15

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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.