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Finding the Fourth Proportional to 50,242.40, 75,401.04 and 19,138.40

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Solution

The fourth proportional to 50,242.40, 75,401.04 and 19,138.40 is: 28,721.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,242.40 : 75,401.04 = 19,138.40 : x
  2. Step 2: Convert to fraction form
    50,242.40/75,401.04 = 19,138.40/x
  3. Step 3: Cross multiply
    50,242.40x = 75,401.04 × 19,138.40
  4. Step 4: Simplify right side
    50,242.40x = 1,443,055,263.94
  5. Step 5: Solve for x
    x = 1,443,055,263.94/50,242.40
  6. Step 6: Final answer
    x = 28,721.86

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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.