Home / 42,773.54-64,176.75-30,135.47

Finding the Fourth Proportional to 42,773.54, 64,176.75 and 30,135.47

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Solution

The fourth proportional to 42,773.54, 64,176.75 and 30,135.47 is: 45,214.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,773.54 : 64,176.75 = 30,135.47 : x
  2. Step 2: Convert to fraction form
    42,773.54/64,176.75 = 30,135.47/x
  3. Step 3: Cross multiply
    42,773.54x = 64,176.75 × 30,135.47
  4. Step 4: Simplify right side
    42,773.54x = 1,933,996,203.44
  5. Step 5: Solve for x
    x = 1,933,996,203.44/42,773.54
  6. Step 6: Final answer
    x = 45,214.79

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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.