Home / 77,935.06-107,550.35-42,125.06

Finding the Fourth Proportional to 77,935.06, 107,550.35 and 42,125.06

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Solution

The fourth proportional to 77,935.06, 107,550.35 and 42,125.06 is: 58,132.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,935.06 : 107,550.35 = 42,125.06 : x
  2. Step 2: Convert to fraction form
    77,935.06/107,550.35 = 42,125.06/x
  3. Step 3: Cross multiply
    77,935.06x = 107,550.35 × 42,125.06
  4. Step 4: Simplify right side
    77,935.06x = 4,530,564,409.02
  5. Step 5: Solve for x
    x = 4,530,564,409.02/77,935.06
  6. Step 6: Final answer
    x = 58,132.56

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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.