Home / 42,933.60-64,378.80-25,408.80

Finding the Fourth Proportional to 42,933.60, 64,378.80 and 25,408.80

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Solution

The fourth proportional to 42,933.60, 64,378.80 and 25,408.80 is: 38,100.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,933.60 : 64,378.80 = 25,408.80 : x
  2. Step 2: Convert to fraction form
    42,933.60/64,378.80 = 25,408.80/x
  3. Step 3: Cross multiply
    42,933.60x = 64,378.80 × 25,408.80
  4. Step 4: Simplify right side
    42,933.60x = 1,635,788,053.44
  5. Step 5: Solve for x
    x = 1,635,788,053.44/42,933.60
  6. Step 6: Final answer
    x = 38,100.42

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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.