Home / 42,727.20-64,089.96-12,761.73

Finding the Fourth Proportional to 42,727.20, 64,089.96 and 12,761.73

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Solution

The fourth proportional to 42,727.20, 64,089.96 and 12,761.73 is: 19,142.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,727.20 : 64,089.96 = 12,761.73 : x
  2. Step 2: Convert to fraction form
    42,727.20/64,089.96 = 12,761.73/x
  3. Step 3: Cross multiply
    42,727.20x = 64,089.96 × 12,761.73
  4. Step 4: Simplify right side
    42,727.20x = 817,898,837.54
  5. Step 5: Solve for x
    x = 817,898,837.54/42,727.20
  6. Step 6: Final answer
    x = 19,142.35

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1.5x scale

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.