Home / 56,138.42-84,196.11-21,077.30

Finding the Fourth Proportional to 56,138.42, 84,196.11 and 21,077.30

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Solution

The fourth proportional to 56,138.42, 84,196.11 and 21,077.30 is: 31,611.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,138.42 : 84,196.11 = 21,077.30 : x
  2. Step 2: Convert to fraction form
    56,138.42/84,196.11 = 21,077.30/x
  3. Step 3: Cross multiply
    56,138.42x = 84,196.11 × 21,077.30
  4. Step 4: Simplify right side
    56,138.42x = 1,774,626,669.30
  5. Step 5: Solve for x
    x = 1,774,626,669.30/56,138.42
  6. Step 6: Final answer
    x = 31,611.62

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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.