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Finding the Fourth Proportional to 52,718, 72,750.16 and 28,844.32

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Solution

The fourth proportional to 52,718, 72,750.16 and 28,844.32 is: 39,804.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,718 : 72,750.16 = 28,844.32 : x
  2. Step 2: Convert to fraction form
    52,718/72,750.16 = 28,844.32/x
  3. Step 3: Cross multiply
    52,718x = 72,750.16 × 28,844.32
  4. Step 4: Simplify right side
    52,718x = 2,098,428,895.09
  5. Step 5: Solve for x
    x = 2,098,428,895.09/52,718
  6. Step 6: Final answer
    x = 39,804.79

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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.