Home / 92,849.28-139,147.80-42,819.36

Finding the Fourth Proportional to 92,849.28, 139,147.80 and 42,819.36

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Solution

The fourth proportional to 92,849.28, 139,147.80 and 42,819.36 is: 64,170.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,849.28 : 139,147.80 = 42,819.36 : x
  2. Step 2: Convert to fraction form
    92,849.28/139,147.80 = 42,819.36/x
  3. Step 3: Cross multiply
    92,849.28x = 139,147.80 × 42,819.36
  4. Step 4: Simplify right side
    92,849.28x = 5,958,219,741.41
  5. Step 5: Solve for x
    x = 5,958,219,741.41/92,849.28
  6. Step 6: Final answer
    x = 64,170.88

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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.