Home / 84,334.53-126,458.81-28,154.45

Finding the Fourth Proportional to 84,334.53, 126,458.81 and 28,154.45

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Solution

The fourth proportional to 84,334.53, 126,458.81 and 28,154.45 is: 42,217.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,334.53 : 126,458.81 = 28,154.45 : x
  2. Step 2: Convert to fraction form
    84,334.53/126,458.81 = 28,154.45/x
  3. Step 3: Cross multiply
    84,334.53x = 126,458.81 × 28,154.45
  4. Step 4: Simplify right side
    84,334.53x = 3,560,377,997.44
  5. Step 5: Solve for x
    x = 3,560,377,997.44/84,334.53
  6. Step 6: Final answer
    x = 42,217.32

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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.