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Finding the Fourth Proportional to 50,449.88, 75,672 and 15,386.78

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Solution

The fourth proportional to 50,449.88, 75,672 and 15,386.78 is: 23,079.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,449.88 : 75,672 = 15,386.78 : x
  2. Step 2: Convert to fraction form
    50,449.88/75,672 = 15,386.78/x
  3. Step 3: Cross multiply
    50,449.88x = 75,672 × 15,386.78
  4. Step 4: Simplify right side
    50,449.88x = 1,164,348,416.16
  5. Step 5: Solve for x
    x = 1,164,348,416.16/50,449.88
  6. Step 6: Final answer
    x = 23,079.31

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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.