Home / 77,995.92-107,634.66-42,186.18

Finding the Fourth Proportional to 77,995.92, 107,634.66 and 42,186.18

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Solution

The fourth proportional to 77,995.92, 107,634.66 and 42,186.18 is: 58,217.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,995.92 : 107,634.66 = 42,186.18 : x
  2. Step 2: Convert to fraction form
    77,995.92/107,634.66 = 42,186.18/x
  3. Step 3: Cross multiply
    77,995.92x = 107,634.66 × 42,186.18
  4. Step 4: Simplify right side
    77,995.92x = 4,540,695,141.00
  5. Step 5: Solve for x
    x = 4,540,695,141.00/77,995.92
  6. Step 6: Final answer
    x = 58,217.09

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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.