Home / 42,896.90-64,274.20-30,354.74

Finding the Fourth Proportional to 42,896.90, 64,274.20 and 30,354.74

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Solution

The fourth proportional to 42,896.90, 64,274.20 and 30,354.74 is: 45,481.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,896.90 : 64,274.20 = 30,354.74 : x
  2. Step 2: Convert to fraction form
    42,896.90/64,274.20 = 30,354.74/x
  3. Step 3: Cross multiply
    42,896.90x = 64,274.20 × 30,354.74
  4. Step 4: Simplify right side
    42,896.90x = 1,951,026,629.71
  5. Step 5: Solve for x
    x = 1,951,026,629.71/42,896.90
  6. Step 6: Final answer
    x = 45,481.76

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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.