Home / 90,147.12-124,401.96-49,857.72

Finding the Fourth Proportional to 90,147.12, 124,401.96 and 49,857.72

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Solution

The fourth proportional to 90,147.12, 124,401.96 and 49,857.72 is: 68,803.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,147.12 : 124,401.96 = 49,857.72 : x
  2. Step 2: Convert to fraction form
    90,147.12/124,401.96 = 49,857.72/x
  3. Step 3: Cross multiply
    90,147.12x = 124,401.96 × 49,857.72
  4. Step 4: Simplify right side
    90,147.12x = 6,202,398,089.13
  5. Step 5: Solve for x
    x = 6,202,398,089.13/90,147.12
  6. Step 6: Final answer
    x = 68,803.06

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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.