Home / 75,665.54-113,373.47-43,986.71

Finding the Fourth Proportional to 75,665.54, 113,373.47 and 43,986.71

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Solution

The fourth proportional to 75,665.54, 113,373.47 and 43,986.71 is: 65,907.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,665.54 : 113,373.47 = 43,986.71 : x
  2. Step 2: Convert to fraction form
    75,665.54/113,373.47 = 43,986.71/x
  3. Step 3: Cross multiply
    75,665.54x = 113,373.47 × 43,986.71
  4. Step 4: Simplify right side
    75,665.54x = 4,986,926,339.98
  5. Step 5: Solve for x
    x = 4,986,926,339.98/75,665.54
  6. Step 6: Final answer
    x = 65,907.49

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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.