Home / 40,077.36-60,124.68-11,999.64

Finding the Fourth Proportional to 40,077.36, 60,124.68 and 11,999.64

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Solution

The fourth proportional to 40,077.36, 60,124.68 and 11,999.64 is: 18,002.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,077.36 : 60,124.68 = 11,999.64 : x
  2. Step 2: Convert to fraction form
    40,077.36/60,124.68 = 11,999.64/x
  3. Step 3: Cross multiply
    40,077.36x = 60,124.68 × 11,999.64
  4. Step 4: Simplify right side
    40,077.36x = 721,474,515.12
  5. Step 5: Solve for x
    x = 721,474,515.12/40,077.36
  6. Step 6: Final answer
    x = 18,002.05

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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.