Home / 84,361.10-126,498.66-28,181.02

Finding the Fourth Proportional to 84,361.10, 126,498.66 and 28,181.02

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Solution

The fourth proportional to 84,361.10, 126,498.66 and 28,181.02 is: 42,257.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,361.10 : 126,498.66 = 28,181.02 : x
  2. Step 2: Convert to fraction form
    84,361.10/126,498.66 = 28,181.02/x
  3. Step 3: Cross multiply
    84,361.10x = 126,498.66 × 28,181.02
  4. Step 4: Simplify right side
    84,361.10x = 3,564,861,267.43
  5. Step 5: Solve for x
    x = 3,564,861,267.43/84,361.10
  6. Step 6: Final answer
    x = 42,257.17

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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.