Home / 85,212.48-127,876.32-29,808.96

Finding the Fourth Proportional to 85,212.48, 127,876.32 and 29,808.96

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Solution

The fourth proportional to 85,212.48, 127,876.32 and 29,808.96 is: 44,733.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,212.48 : 127,876.32 = 29,808.96 : x
  2. Step 2: Convert to fraction form
    85,212.48/127,876.32 = 29,808.96/x
  3. Step 3: Cross multiply
    85,212.48x = 127,876.32 × 29,808.96
  4. Step 4: Simplify right side
    85,212.48x = 3,811,860,107.83
  5. Step 5: Solve for x
    x = 3,811,860,107.83/85,212.48
  6. Step 6: Final answer
    x = 44,733.59

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1.5x scale

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.