Home / 90,401.33-124,742.30-50,114.72

Finding the Fourth Proportional to 90,401.33, 124,742.30 and 50,114.72

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Solution

The fourth proportional to 90,401.33, 124,742.30 and 50,114.72 is: 69,151.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,401.33 : 124,742.30 = 50,114.72 : x
  2. Step 2: Convert to fraction form
    90,401.33/124,742.30 = 50,114.72/x
  3. Step 3: Cross multiply
    90,401.33x = 124,742.30 × 50,114.72
  4. Step 4: Simplify right side
    90,401.33x = 6,251,425,497.94
  5. Step 5: Solve for x
    x = 6,251,425,497.94/90,401.33
  6. Step 6: Final answer
    x = 69,151.92

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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.