Home / 75,274.23-112,911.38-19,118.55

Finding the Fourth Proportional to 75,274.23, 112,911.38 and 19,118.55

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Solution

The fourth proportional to 75,274.23, 112,911.38 and 19,118.55 is: 28,677.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,274.23 : 112,911.38 = 19,118.55 : x
  2. Step 2: Convert to fraction form
    75,274.23/112,911.38 = 19,118.55/x
  3. Step 3: Cross multiply
    75,274.23x = 112,911.38 × 19,118.55
  4. Step 4: Simplify right side
    75,274.23x = 2,158,701,299.54
  5. Step 5: Solve for x
    x = 2,158,701,299.54/75,274.23
  6. Step 6: Final answer
    x = 28,677.83

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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.