Home / 66,875.34-100,310.58-20,127

Finding the Fourth Proportional to 66,875.34, 100,310.58 and 20,127

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Solution

The fourth proportional to 66,875.34, 100,310.58 and 20,127 is: 30,189.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,875.34 : 100,310.58 = 20,127 : x
  2. Step 2: Convert to fraction form
    66,875.34/100,310.58 = 20,127/x
  3. Step 3: Cross multiply
    66,875.34x = 100,310.58 × 20,127
  4. Step 4: Simplify right side
    66,875.34x = 2,018,951,043.66
  5. Step 5: Solve for x
    x = 2,018,951,043.66/66,875.34
  6. Step 6: Final answer
    x = 30,189.77

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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.