Home / 42,898.89-64,277.21-30,356.75

Finding the Fourth Proportional to 42,898.89, 64,277.21 and 30,356.75

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Solution

The fourth proportional to 42,898.89, 64,277.21 and 30,356.75 is: 45,484.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,898.89 : 64,277.21 = 30,356.75 : x
  2. Step 2: Convert to fraction form
    42,898.89/64,277.21 = 30,356.75/x
  3. Step 3: Cross multiply
    42,898.89x = 64,277.21 × 30,356.75
  4. Step 4: Simplify right side
    42,898.89x = 1,951,246,721.50
  5. Step 5: Solve for x
    x = 1,951,246,721.50/42,898.89
  6. Step 6: Final answer
    x = 45,484.78

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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.