Home / 81,172.70-121,770.48-25,017.35

Finding the Fourth Proportional to 81,172.70, 121,770.48 and 25,017.35

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Solution

The fourth proportional to 81,172.70, 121,770.48 and 25,017.35 is: 37,529.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,172.70 : 121,770.48 = 25,017.35 : x
  2. Step 2: Convert to fraction form
    81,172.70/121,770.48 = 25,017.35/x
  3. Step 3: Cross multiply
    81,172.70x = 121,770.48 × 25,017.35
  4. Step 4: Simplify right side
    81,172.70x = 3,046,374,108.98
  5. Step 5: Solve for x
    x = 3,046,374,108.98/81,172.70
  6. Step 6: Final answer
    x = 37,529.54

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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.