Home / 55,919.52-77,169.96-30,768.48

Finding the Fourth Proportional to 55,919.52, 77,169.96 and 30,768.48

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Solution

The fourth proportional to 55,919.52, 77,169.96 and 30,768.48 is: 42,461.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,919.52 : 77,169.96 = 30,768.48 : x
  2. Step 2: Convert to fraction form
    55,919.52/77,169.96 = 30,768.48/x
  3. Step 3: Cross multiply
    55,919.52x = 77,169.96 × 30,768.48
  4. Step 4: Simplify right side
    55,919.52x = 2,374,402,370.86
  5. Step 5: Solve for x
    x = 2,374,402,370.86/55,919.52
  6. Step 6: Final answer
    x = 42,461.06

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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.