Home / 90,024.30-123,942.42-74,080.26

Finding the Fourth Proportional to 90,024.30, 123,942.42 and 74,080.26

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Solution

The fourth proportional to 90,024.30, 123,942.42 and 74,080.26 is: 101,991.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,024.30 : 123,942.42 = 74,080.26 : x
  2. Step 2: Convert to fraction form
    90,024.30/123,942.42 = 74,080.26/x
  3. Step 3: Cross multiply
    90,024.30x = 123,942.42 × 74,080.26
  4. Step 4: Simplify right side
    90,024.30x = 9,181,686,698.63
  5. Step 5: Solve for x
    x = 9,181,686,698.63/90,024.30
  6. Step 6: Final answer
    x = 101,991.20

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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.