Home / 42,775.76-64,165.56-15,074

Finding the Fourth Proportional to 42,775.76, 64,165.56 and 15,074

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Solution

The fourth proportional to 42,775.76, 64,165.56 and 15,074 is: 22,611.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,775.76 : 64,165.56 = 15,074 : x
  2. Step 2: Convert to fraction form
    42,775.76/64,165.56 = 15,074/x
  3. Step 3: Cross multiply
    42,775.76x = 64,165.56 × 15,074
  4. Step 4: Simplify right side
    42,775.76x = 967,231,651.44
  5. Step 5: Solve for x
    x = 967,231,651.44/42,775.76
  6. Step 6: Final answer
    x = 22,611.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.