Home / 40,138.07-60,191.55-12,051.50

Finding the Fourth Proportional to 40,138.07, 60,191.55 and 12,051.50

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Solution

The fourth proportional to 40,138.07, 60,191.55 and 12,051.50 is: 18,072.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,138.07 : 60,191.55 = 12,051.50 : x
  2. Step 2: Convert to fraction form
    40,138.07/60,191.55 = 12,051.50/x
  3. Step 3: Cross multiply
    40,138.07x = 60,191.55 × 12,051.50
  4. Step 4: Simplify right side
    40,138.07x = 725,398,163.87
  5. Step 5: Solve for x
    x = 725,398,163.87/40,138.07
  6. Step 6: Final answer
    x = 18,072.57

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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.