Home / 90,408.48-124,752.12-50,121.84

Finding the Fourth Proportional to 90,408.48, 124,752.12 and 50,121.84

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Solution

The fourth proportional to 90,408.48, 124,752.12 and 50,121.84 is: 69,161.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,408.48 : 124,752.12 = 50,121.84 : x
  2. Step 2: Convert to fraction form
    90,408.48/124,752.12 = 50,121.84/x
  3. Step 3: Cross multiply
    90,408.48x = 124,752.12 × 50,121.84
  4. Step 4: Simplify right side
    90,408.48x = 6,252,805,798.30
  5. Step 5: Solve for x
    x = 6,252,805,798.30/90,408.48
  6. Step 6: Final answer
    x = 69,161.72

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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.