Home / 56,181.18-84,284.34-21,121.14

Finding the Fourth Proportional to 56,181.18, 84,284.34 and 21,121.14

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Solution

The fourth proportional to 56,181.18, 84,284.34 and 21,121.14 is: 31,686.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,181.18 : 84,284.34 = 21,121.14 : x
  2. Step 2: Convert to fraction form
    56,181.18/84,284.34 = 21,121.14/x
  3. Step 3: Cross multiply
    56,181.18x = 84,284.34 × 21,121.14
  4. Step 4: Simplify right side
    56,181.18x = 1,780,181,344.95
  5. Step 5: Solve for x
    x = 1,780,181,344.95/56,181.18
  6. Step 6: Final answer
    x = 31,686.44

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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.