Home / 51,409.75-70,944.96-28,748.48

Finding the Fourth Proportional to 51,409.75, 70,944.96 and 28,748.48

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Solution

The fourth proportional to 51,409.75, 70,944.96 and 28,748.48 is: 39,672.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,409.75 : 70,944.96 = 28,748.48 : x
  2. Step 2: Convert to fraction form
    51,409.75/70,944.96 = 28,748.48/x
  3. Step 3: Cross multiply
    51,409.75x = 70,944.96 × 28,748.48
  4. Step 4: Simplify right side
    51,409.75x = 2,039,559,835.53
  5. Step 5: Solve for x
    x = 2,039,559,835.53/51,409.75
  6. Step 6: Final answer
    x = 39,672.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.