Home / 47,172.76-65,098.28-28,309.88

Finding the Fourth Proportional to 47,172.76, 65,098.28 and 28,309.88

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Solution

The fourth proportional to 47,172.76, 65,098.28 and 28,309.88 is: 39,067.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,172.76 : 65,098.28 = 28,309.88 : x
  2. Step 2: Convert to fraction form
    47,172.76/65,098.28 = 28,309.88/x
  3. Step 3: Cross multiply
    47,172.76x = 65,098.28 × 28,309.88
  4. Step 4: Simplify right side
    47,172.76x = 1,842,924,495.01
  5. Step 5: Solve for x
    x = 1,842,924,495.01/47,172.76
  6. Step 6: Final answer
    x = 39,067.56

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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.