Home / 52,711.21-72,743.20-28,837.33

Finding the Fourth Proportional to 52,711.21, 72,743.20 and 28,837.33

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Solution

The fourth proportional to 52,711.21, 72,743.20 and 28,837.33 is: 39,796.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,711.21 : 72,743.20 = 28,837.33 : x
  2. Step 2: Convert to fraction form
    52,711.21/72,743.20 = 28,837.33/x
  3. Step 3: Cross multiply
    52,711.21x = 72,743.20 × 28,837.33
  4. Step 4: Simplify right side
    52,711.21x = 2,097,719,918.42
  5. Step 5: Solve for x
    x = 2,097,719,918.42/52,711.21
  6. Step 6: Final answer
    x = 39,796.46

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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.