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Finding the Fourth Proportional to 75,341.76, 113,012.62 and 19,937.76

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Solution

The fourth proportional to 75,341.76, 113,012.62 and 19,937.76 is: 29,906.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,341.76 : 113,012.62 = 19,937.76 : x
  2. Step 2: Convert to fraction form
    75,341.76/113,012.62 = 19,937.76/x
  3. Step 3: Cross multiply
    75,341.76x = 113,012.62 × 19,937.76
  4. Step 4: Simplify right side
    75,341.76x = 2,253,218,494.53
  5. Step 5: Solve for x
    x = 2,253,218,494.53/75,341.76
  6. Step 6: Final answer
    x = 29,906.63

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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.