Home / 75,274.38-112,911.62-19,118.70

Finding the Fourth Proportional to 75,274.38, 112,911.62 and 19,118.70

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Solution

The fourth proportional to 75,274.38, 112,911.62 and 19,118.70 is: 28,678.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,274.38 : 112,911.62 = 19,118.70 : x
  2. Step 2: Convert to fraction form
    75,274.38/112,911.62 = 19,118.70/x
  3. Step 3: Cross multiply
    75,274.38x = 112,911.62 × 19,118.70
  4. Step 4: Simplify right side
    75,274.38x = 2,158,723,293.70
  5. Step 5: Solve for x
    x = 2,158,723,293.70/75,274.38
  6. Step 6: Final answer
    x = 28,678.06

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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.