Home / 55,391.76-76,504.32-40,351.68

Finding the Fourth Proportional to 55,391.76, 76,504.32 and 40,351.68

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Solution

The fourth proportional to 55,391.76, 76,504.32 and 40,351.68 is: 55,731.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,391.76 : 76,504.32 = 40,351.68 : x
  2. Step 2: Convert to fraction form
    55,391.76/76,504.32 = 40,351.68/x
  3. Step 3: Cross multiply
    55,391.76x = 76,504.32 × 40,351.68
  4. Step 4: Simplify right side
    55,391.76x = 3,087,077,839.26
  5. Step 5: Solve for x
    x = 3,087,077,839.26/55,391.76
  6. Step 6: Final answer
    x = 55,731.72

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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.