Home / 90,411.44-124,763.46-50,126.84

Finding the Fourth Proportional to 90,411.44, 124,763.46 and 50,126.84

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Solution

The fourth proportional to 90,411.44, 124,763.46 and 50,126.84 is: 69,172.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,411.44 : 124,763.46 = 50,126.84 : x
  2. Step 2: Convert to fraction form
    90,411.44/124,763.46 = 50,126.84/x
  3. Step 3: Cross multiply
    90,411.44x = 124,763.46 × 50,126.84
  4. Step 4: Simplify right side
    90,411.44x = 6,253,997,997.27
  5. Step 5: Solve for x
    x = 6,253,997,997.27/90,411.44
  6. Step 6: Final answer
    x = 69,172.64

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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.