Home / 51,764.74-71,439.90-30,539.86

Finding the Fourth Proportional to 51,764.74, 71,439.90 and 30,539.86

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Solution

The fourth proportional to 51,764.74, 71,439.90 and 30,539.86 is: 42,147.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,764.74 : 71,439.90 = 30,539.86 : x
  2. Step 2: Convert to fraction form
    51,764.74/71,439.90 = 30,539.86/x
  3. Step 3: Cross multiply
    51,764.74x = 71,439.90 × 30,539.86
  4. Step 4: Simplify right side
    51,764.74x = 2,181,764,544.41
  5. Step 5: Solve for x
    x = 2,181,764,544.41/51,764.74
  6. Step 6: Final answer
    x = 42,147.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.