Home / 85,234.21-127,856.44-26,070.39

Finding the Fourth Proportional to 85,234.21, 127,856.44 and 26,070.39

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Solution

The fourth proportional to 85,234.21, 127,856.44 and 26,070.39 is: 39,107.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,234.21 : 127,856.44 = 26,070.39 : x
  2. Step 2: Convert to fraction form
    85,234.21/127,856.44 = 26,070.39/x
  3. Step 3: Cross multiply
    85,234.21x = 127,856.44 × 26,070.39
  4. Step 4: Simplify right side
    85,234.21x = 3,333,267,799.45
  5. Step 5: Solve for x
    x = 3,333,267,799.45/85,234.21
  6. Step 6: Final answer
    x = 39,107.16

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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.