Home / 55,905.76-77,149.92-30,755.08

Finding the Fourth Proportional to 55,905.76, 77,149.92 and 30,755.08

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Solution

The fourth proportional to 55,905.76, 77,149.92 and 30,755.08 is: 42,441.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,905.76 : 77,149.92 = 30,755.08 : x
  2. Step 2: Convert to fraction form
    55,905.76/77,149.92 = 30,755.08/x
  3. Step 3: Cross multiply
    55,905.76x = 77,149.92 × 30,755.08
  4. Step 4: Simplify right side
    55,905.76x = 2,372,751,961.59
  5. Step 5: Solve for x
    x = 2,372,751,961.59/55,905.76
  6. Step 6: Final answer
    x = 42,441.99

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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.