Home / 75,731.60-104,507.28-47,452.88

Finding the Fourth Proportional to 75,731.60, 104,507.28 and 47,452.88

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Solution

The fourth proportional to 75,731.60, 104,507.28 and 47,452.88 is: 65,483.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,731.60 : 104,507.28 = 47,452.88 : x
  2. Step 2: Convert to fraction form
    75,731.60/104,507.28 = 47,452.88/x
  3. Step 3: Cross multiply
    75,731.60x = 104,507.28 × 47,452.88
  4. Step 4: Simplify right side
    75,731.60x = 4,959,171,416.97
  5. Step 5: Solve for x
    x = 4,959,171,416.97/75,731.60
  6. Step 6: Final answer
    x = 65,483.52

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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.