Home / 40,187.40-60,280.79-12,107.36

Finding the Fourth Proportional to 40,187.40, 60,280.79 and 12,107.36

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Solution

The fourth proportional to 40,187.40, 60,280.79 and 12,107.36 is: 18,160.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,187.40 : 60,280.79 = 12,107.36 : x
  2. Step 2: Convert to fraction form
    40,187.40/60,280.79 = 12,107.36/x
  3. Step 3: Cross multiply
    40,187.40x = 60,280.79 × 12,107.36
  4. Step 4: Simplify right side
    40,187.40x = 729,840,863.67
  5. Step 5: Solve for x
    x = 729,840,863.67/40,187.40
  6. Step 6: Final answer
    x = 18,160.94

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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.