Home / 77,305.92-106,662.96-49,001.28

Finding the Fourth Proportional to 77,305.92, 106,662.96 and 49,001.28

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Solution

The fourth proportional to 77,305.92, 106,662.96 and 49,001.28 is: 67,609.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,305.92 : 106,662.96 = 49,001.28 : x
  2. Step 2: Convert to fraction form
    77,305.92/106,662.96 = 49,001.28/x
  3. Step 3: Cross multiply
    77,305.92x = 106,662.96 × 49,001.28
  4. Step 4: Simplify right side
    77,305.92x = 5,226,621,568.59
  5. Step 5: Solve for x
    x = 5,226,621,568.59/77,305.92
  6. Step 6: Final answer
    x = 67,609.59

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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.