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Finding the Fourth Proportional to 50,159.29, 75,239.08 and 12,719.39

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Solution

The fourth proportional to 50,159.29, 75,239.08 and 12,719.39 is: 19,079.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,159.29 : 75,239.08 = 12,719.39 : x
  2. Step 2: Convert to fraction form
    50,159.29/75,239.08 = 12,719.39/x
  3. Step 3: Cross multiply
    50,159.29x = 75,239.08 × 12,719.39
  4. Step 4: Simplify right side
    50,159.29x = 956,995,403.28
  5. Step 5: Solve for x
    x = 956,995,403.28/50,159.29
  6. Step 6: Final answer
    x = 19,079.12

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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.