Home / 69,617.40-104,426.10-40,126.20

Finding the Fourth Proportional to 69,617.40, 104,426.10 and 40,126.20

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Solution

The fourth proportional to 69,617.40, 104,426.10 and 40,126.20 is: 60,189.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,617.40 : 104,426.10 = 40,126.20 : x
  2. Step 2: Convert to fraction form
    69,617.40/104,426.10 = 40,126.20/x
  3. Step 3: Cross multiply
    69,617.40x = 104,426.10 × 40,126.20
  4. Step 4: Simplify right side
    69,617.40x = 4,190,222,573.82
  5. Step 5: Solve for x
    x = 4,190,222,573.82/69,617.40
  6. Step 6: Final answer
    x = 60,189.30

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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.