Home / 99,412.75-149,129.48-31,927.73

Finding the Fourth Proportional to 99,412.75, 149,129.48 and 31,927.73

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Solution

The fourth proportional to 99,412.75, 149,129.48 and 31,927.73 is: 47,894.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,412.75 : 149,129.48 = 31,927.73 : x
  2. Step 2: Convert to fraction form
    99,412.75/149,129.48 = 31,927.73/x
  3. Step 3: Cross multiply
    99,412.75x = 149,129.48 × 31,927.73
  4. Step 4: Simplify right side
    99,412.75x = 4,761,365,772.48
  5. Step 5: Solve for x
    x = 4,761,365,772.48/99,412.75
  6. Step 6: Final answer
    x = 47,894.92

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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.