Home / 40,108.45-60,162.53-13,813.12

Finding the Fourth Proportional to 40,108.45, 60,162.53 and 13,813.12

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Solution

The fourth proportional to 40,108.45, 60,162.53 and 13,813.12 is: 20,719.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,108.45 : 60,162.53 = 13,813.12 : x
  2. Step 2: Convert to fraction form
    40,108.45/60,162.53 = 13,813.12/x
  3. Step 3: Cross multiply
    40,108.45x = 60,162.53 × 13,813.12
  4. Step 4: Simplify right side
    40,108.45x = 831,032,246.39
  5. Step 5: Solve for x
    x = 831,032,246.39/40,108.45
  6. Step 6: Final answer
    x = 20,719.63

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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.