Home / 75,163.38-103,727.13-42,897.35

Finding the Fourth Proportional to 75,163.38, 103,727.13 and 42,897.35

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Solution

The fourth proportional to 75,163.38, 103,727.13 and 42,897.35 is: 59,199.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,163.38 : 103,727.13 = 42,897.35 : x
  2. Step 2: Convert to fraction form
    75,163.38/103,727.13 = 42,897.35/x
  3. Step 3: Cross multiply
    75,163.38x = 103,727.13 × 42,897.35
  4. Step 4: Simplify right side
    75,163.38x = 4,449,619,259.42
  5. Step 5: Solve for x
    x = 4,449,619,259.42/75,163.38
  6. Step 6: Final answer
    x = 59,199.30

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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.