Home / 77,983.77-116,991.45-25,379.13

Finding the Fourth Proportional to 77,983.77, 116,991.45 and 25,379.13

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Solution

The fourth proportional to 77,983.77, 116,991.45 and 25,379.13 is: 38,073.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,983.77 : 116,991.45 = 25,379.13 : x
  2. Step 2: Convert to fraction form
    77,983.77/116,991.45 = 25,379.13/x
  3. Step 3: Cross multiply
    77,983.77x = 116,991.45 × 25,379.13
  4. Step 4: Simplify right side
    77,983.77x = 2,969,141,218.44
  5. Step 5: Solve for x
    x = 2,969,141,218.44/77,983.77
  6. Step 6: Final answer
    x = 38,073.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.