Home / 55,781.39-76,913.28-41,609.63

Finding the Fourth Proportional to 55,781.39, 76,913.28 and 41,609.63

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Solution

The fourth proportional to 55,781.39, 76,913.28 and 41,609.63 is: 57,372.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,781.39 : 76,913.28 = 41,609.63 : x
  2. Step 2: Convert to fraction form
    55,781.39/76,913.28 = 41,609.63/x
  3. Step 3: Cross multiply
    55,781.39x = 76,913.28 × 41,609.63
  4. Step 4: Simplify right side
    55,781.39x = 3,200,333,315.17
  5. Step 5: Solve for x
    x = 3,200,333,315.17/55,781.39
  6. Step 6: Final answer
    x = 57,372.78

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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.