Home / 84,238.46-126,315.41-28,058.81

Finding the Fourth Proportional to 84,238.46, 126,315.41 and 28,058.81

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Solution

The fourth proportional to 84,238.46, 126,315.41 and 28,058.81 is: 42,074.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,238.46 : 126,315.41 = 28,058.81 : x
  2. Step 2: Convert to fraction form
    84,238.46/126,315.41 = 28,058.81/x
  3. Step 3: Cross multiply
    84,238.46x = 126,315.41 × 28,058.81
  4. Step 4: Simplify right side
    84,238.46x = 3,544,259,317.39
  5. Step 5: Solve for x
    x = 3,544,259,317.39/84,238.46
  6. Step 6: Final answer
    x = 42,074.13

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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.