Home / 77,022.37-115,543.30-26,431.26

Finding the Fourth Proportional to 77,022.37, 115,543.30 and 26,431.26

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Solution

The fourth proportional to 77,022.37, 115,543.30 and 26,431.26 is: 39,650.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,022.37 : 115,543.30 = 26,431.26 : x
  2. Step 2: Convert to fraction form
    77,022.37/115,543.30 = 26,431.26/x
  3. Step 3: Cross multiply
    77,022.37x = 115,543.30 × 26,431.26
  4. Step 4: Simplify right side
    77,022.37x = 3,053,955,003.56
  5. Step 5: Solve for x
    x = 3,053,955,003.56/77,022.37
  6. Step 6: Final answer
    x = 39,650.23

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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.