Home / 75,426.14-113,186.85-42,168.02

Finding the Fourth Proportional to 75,426.14, 113,186.85 and 42,168.02

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Solution

The fourth proportional to 75,426.14, 113,186.85 and 42,168.02 is: 63,278.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,426.14 : 113,186.85 = 42,168.02 : x
  2. Step 2: Convert to fraction form
    75,426.14/113,186.85 = 42,168.02/x
  3. Step 3: Cross multiply
    75,426.14x = 113,186.85 × 42,168.02
  4. Step 4: Simplify right side
    75,426.14x = 4,772,865,354.54
  5. Step 5: Solve for x
    x = 4,772,865,354.54/75,426.14
  6. Step 6: Final answer
    x = 63,278.66

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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.