Home / 55,087.48-75,999.25-40,781.55

Finding the Fourth Proportional to 55,087.48, 75,999.25 and 40,781.55

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Solution

The fourth proportional to 55,087.48, 75,999.25 and 40,781.55 is: 56,262.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,087.48 : 75,999.25 = 40,781.55 : x
  2. Step 2: Convert to fraction form
    55,087.48/75,999.25 = 40,781.55/x
  3. Step 3: Cross multiply
    55,087.48x = 75,999.25 × 40,781.55
  4. Step 4: Simplify right side
    55,087.48x = 3,099,367,259.66
  5. Step 5: Solve for x
    x = 3,099,367,259.66/55,087.48
  6. Step 6: Final answer
    x = 56,262.65

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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.