Home / 71,022.20-98,007.30-40,786.20

Finding the Fourth Proportional to 71,022.20, 98,007.30 and 40,786.20

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Solution

The fourth proportional to 71,022.20, 98,007.30 and 40,786.20 is: 56,283.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,022.20 : 98,007.30 = 40,786.20 : x
  2. Step 2: Convert to fraction form
    71,022.20/98,007.30 = 40,786.20/x
  3. Step 3: Cross multiply
    71,022.20x = 98,007.30 × 40,786.20
  4. Step 4: Simplify right side
    71,022.20x = 3,997,345,339.26
  5. Step 5: Solve for x
    x = 3,997,345,339.26/71,022.20
  6. Step 6: Final answer
    x = 56,283.04

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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.