Home / 42,769.22-64,170.27-30,131.13

Finding the Fourth Proportional to 42,769.22, 64,170.27 and 30,131.13

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Solution

The fourth proportional to 42,769.22, 64,170.27 and 30,131.13 is: 45,208.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,769.22 : 64,170.27 = 30,131.13 : x
  2. Step 2: Convert to fraction form
    42,769.22/64,170.27 = 30,131.13/x
  3. Step 3: Cross multiply
    42,769.22x = 64,170.27 × 30,131.13
  4. Step 4: Simplify right side
    42,769.22x = 1,933,522,747.51
  5. Step 5: Solve for x
    x = 1,933,522,747.51/42,769.22
  6. Step 6: Final answer
    x = 45,208.27

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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.