Home / 55,175.50-76,142.19-30,025.18

Finding the Fourth Proportional to 55,175.50, 76,142.19 and 30,025.18

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Solution

The fourth proportional to 55,175.50, 76,142.19 and 30,025.18 is: 41,434.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,175.50 : 76,142.19 = 30,025.18 : x
  2. Step 2: Convert to fraction form
    55,175.50/76,142.19 = 30,025.18/x
  3. Step 3: Cross multiply
    55,175.50x = 76,142.19 × 30,025.18
  4. Step 4: Simplify right side
    55,175.50x = 2,286,182,960.34
  5. Step 5: Solve for x
    x = 2,286,182,960.34/55,175.50
  6. Step 6: Final answer
    x = 41,434.75

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Double scale
Find fourth proportional to 55,176.50, 76,143.57 and 30,026.18
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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.