Home / 56,812.32-85,219.56-19,380.96

Finding the Fourth Proportional to 56,812.32, 85,219.56 and 19,380.96

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Solution

The fourth proportional to 56,812.32, 85,219.56 and 19,380.96 is: 29,071.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,812.32 : 85,219.56 = 19,380.96 : x
  2. Step 2: Convert to fraction form
    56,812.32/85,219.56 = 19,380.96/x
  3. Step 3: Cross multiply
    56,812.32x = 85,219.56 × 19,380.96
  4. Step 4: Simplify right side
    56,812.32x = 1,651,636,883.58
  5. Step 5: Solve for x
    x = 1,651,636,883.58/56,812.32
  6. Step 6: Final answer
    x = 29,071.81

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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.