Home / 55,625.20-76,768.28-31,755.48

Finding the Fourth Proportional to 55,625.20, 76,768.28 and 31,755.48

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Solution

The fourth proportional to 55,625.20, 76,768.28 and 31,755.48 is: 43,825.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,625.20 : 76,768.28 = 31,755.48 : x
  2. Step 2: Convert to fraction form
    55,625.20/76,768.28 = 31,755.48/x
  3. Step 3: Cross multiply
    55,625.20x = 76,768.28 × 31,755.48
  4. Step 4: Simplify right side
    55,625.20x = 2,437,813,580.17
  5. Step 5: Solve for x
    x = 2,437,813,580.17/55,625.20
  6. Step 6: Final answer
    x = 43,825.70

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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.