Home / 45,587.28-68,406.48-19,311.66

Finding the Fourth Proportional to 45,587.28, 68,406.48 and 19,311.66

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Solution

The fourth proportional to 45,587.28, 68,406.48 and 19,311.66 is: 28,978.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,587.28 : 68,406.48 = 19,311.66 : x
  2. Step 2: Convert to fraction form
    45,587.28/68,406.48 = 19,311.66/x
  3. Step 3: Cross multiply
    45,587.28x = 68,406.48 × 19,311.66
  4. Step 4: Simplify right side
    45,587.28x = 1,321,042,683.56
  5. Step 5: Solve for x
    x = 1,321,042,683.56/45,587.28
  6. Step 6: Final answer
    x = 28,978.32

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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.