Home / 55,031.20-75,942.80-29,880.48

Finding the Fourth Proportional to 55,031.20, 75,942.80 and 29,880.48

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Solution

The fourth proportional to 55,031.20, 75,942.80 and 29,880.48 is: 41,234.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,031.20 : 75,942.80 = 29,880.48 : x
  2. Step 2: Convert to fraction form
    55,031.20/75,942.80 = 29,880.48/x
  3. Step 3: Cross multiply
    55,031.20x = 75,942.80 × 29,880.48
  4. Step 4: Simplify right side
    55,031.20x = 2,269,207,316.54
  5. Step 5: Solve for x
    x = 2,269,207,316.54/55,031.20
  6. Step 6: Final answer
    x = 41,234.92

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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.