Home / 77,997.03-107,635.91-42,187.04

Finding the Fourth Proportional to 77,997.03, 107,635.91 and 42,187.04

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Solution

The fourth proportional to 77,997.03, 107,635.91 and 42,187.04 is: 58,218.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,997.03 : 107,635.91 = 42,187.04 : x
  2. Step 2: Convert to fraction form
    77,997.03/107,635.91 = 42,187.04/x
  3. Step 3: Cross multiply
    77,997.03x = 107,635.91 × 42,187.04
  4. Step 4: Simplify right side
    77,997.03x = 4,540,840,229.67
  5. Step 5: Solve for x
    x = 4,540,840,229.67/77,997.03
  6. Step 6: Final answer
    x = 58,218.12

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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.