Home / 55,917.20-77,164.32-30,422.48

Finding the Fourth Proportional to 55,917.20, 77,164.32 and 30,422.48

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Solution

The fourth proportional to 55,917.20, 77,164.32 and 30,422.48 is: 41,982.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,917.20 : 77,164.32 = 30,422.48 : x
  2. Step 2: Convert to fraction form
    55,917.20/77,164.32 = 30,422.48/x
  3. Step 3: Cross multiply
    55,917.20x = 77,164.32 × 30,422.48
  4. Step 4: Simplify right side
    55,917.20x = 2,347,529,981.91
  5. Step 5: Solve for x
    x = 2,347,529,981.91/55,917.20
  6. Step 6: Final answer
    x = 41,982.25

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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.