Home / 66,817.08-100,215.90-25,254.36

Finding the Fourth Proportional to 66,817.08, 100,215.90 and 25,254.36

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Solution

The fourth proportional to 66,817.08, 100,215.90 and 25,254.36 is: 37,877.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,817.08 : 100,215.90 = 25,254.36 : x
  2. Step 2: Convert to fraction form
    66,817.08/100,215.90 = 25,254.36/x
  3. Step 3: Cross multiply
    66,817.08x = 100,215.90 × 25,254.36
  4. Step 4: Simplify right side
    66,817.08x = 2,530,888,416.32
  5. Step 5: Solve for x
    x = 2,530,888,416.32/66,817.08
  6. Step 6: Final answer
    x = 37,877.87

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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.