Home / 75,426.45-113,187.39-42,168.33

Finding the Fourth Proportional to 75,426.45, 113,187.39 and 42,168.33

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Solution

The fourth proportional to 75,426.45, 113,187.39 and 42,168.33 is: 63,279.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,426.45 : 113,187.39 = 42,168.33 : x
  2. Step 2: Convert to fraction form
    75,426.45/113,187.39 = 42,168.33/x
  3. Step 3: Cross multiply
    75,426.45x = 113,187.39 × 42,168.33
  4. Step 4: Simplify right side
    75,426.45x = 4,772,923,213.36
  5. Step 5: Solve for x
    x = 4,772,923,213.36/75,426.45
  6. Step 6: Final answer
    x = 63,279.17

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1.5x scale

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.