Home / 70,752.22-106,128.43-20,832.90

Finding the Fourth Proportional to 70,752.22, 106,128.43 and 20,832.90

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Solution

The fourth proportional to 70,752.22, 106,128.43 and 20,832.90 is: 31,249.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,752.22 : 106,128.43 = 20,832.90 : x
  2. Step 2: Convert to fraction form
    70,752.22/106,128.43 = 20,832.90/x
  3. Step 3: Cross multiply
    70,752.22x = 106,128.43 × 20,832.90
  4. Step 4: Simplify right side
    70,752.22x = 2,210,962,519.28
  5. Step 5: Solve for x
    x = 2,210,962,519.28/70,752.22
  6. Step 6: Final answer
    x = 31,249.37

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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.