Home / 40,138.77-60,205.85-12,058.21

Finding the Fourth Proportional to 40,138.77, 60,205.85 and 12,058.21

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Solution

The fourth proportional to 40,138.77, 60,205.85 and 12,058.21 is: 18,086.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,138.77 : 60,205.85 = 12,058.21 : x
  2. Step 2: Convert to fraction form
    40,138.77/60,205.85 = 12,058.21/x
  3. Step 3: Cross multiply
    40,138.77x = 60,205.85 × 12,058.21
  4. Step 4: Simplify right side
    40,138.77x = 725,974,782.53
  5. Step 5: Solve for x
    x = 725,974,782.53/40,138.77
  6. Step 6: Final answer
    x = 18,086.62

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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.