Home / 77,662.34-107,365.02-76,951.92

Finding the Fourth Proportional to 77,662.34, 107,365.02 and 76,951.92

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Solution

The fourth proportional to 77,662.34, 107,365.02 and 76,951.92 is: 106,382.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,662.34 : 107,365.02 = 76,951.92 : x
  2. Step 2: Convert to fraction form
    77,662.34/107,365.02 = 76,951.92/x
  3. Step 3: Cross multiply
    77,662.34x = 107,365.02 × 76,951.92
  4. Step 4: Simplify right side
    77,662.34x = 8,261,944,429.84
  5. Step 5: Solve for x
    x = 8,261,944,429.84/77,662.34
  6. Step 6: Final answer
    x = 106,382.89

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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.