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Finding the Fourth Proportional to 55,007.80, 82,511.70 and 35,324.80

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Solution

The fourth proportional to 55,007.80, 82,511.70 and 35,324.80 is: 52,987.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,007.80 : 82,511.70 = 35,324.80 : x
  2. Step 2: Convert to fraction form
    55,007.80/82,511.70 = 35,324.80/x
  3. Step 3: Cross multiply
    55,007.80x = 82,511.70 × 35,324.80
  4. Step 4: Simplify right side
    55,007.80x = 2,914,709,300.16
  5. Step 5: Solve for x
    x = 2,914,709,300.16/55,007.80
  6. Step 6: Final answer
    x = 52,987.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.