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Finding the Fourth Proportional to 52,653.44, 72,663 and 28,781.12

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Solution

The fourth proportional to 52,653.44, 72,663 and 28,781.12 is: 39,718.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,653.44 : 72,663 = 28,781.12 : x
  2. Step 2: Convert to fraction form
    52,653.44/72,663 = 28,781.12/x
  3. Step 3: Cross multiply
    52,653.44x = 72,663 × 28,781.12
  4. Step 4: Simplify right side
    52,653.44x = 2,091,322,522.56
  5. Step 5: Solve for x
    x = 2,091,322,522.56/52,653.44
  6. Step 6: Final answer
    x = 39,718.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.