Home / 40,164.36-55,433.34-38,392.62

Finding the Fourth Proportional to 40,164.36, 55,433.34 and 38,392.62

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Solution

The fourth proportional to 40,164.36, 55,433.34 and 38,392.62 is: 52,988.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,164.36 : 55,433.34 = 38,392.62 : x
  2. Step 2: Convert to fraction form
    40,164.36/55,433.34 = 38,392.62/x
  3. Step 3: Cross multiply
    40,164.36x = 55,433.34 × 38,392.62
  4. Step 4: Simplify right side
    40,164.36x = 2,128,231,157.95
  5. Step 5: Solve for x
    x = 2,128,231,157.95/40,164.36
  6. Step 6: Final answer
    x = 52,988.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.