Home / 90,163.12-124,424.04-49,873.72

Finding the Fourth Proportional to 90,163.12, 124,424.04 and 49,873.72

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Solution

The fourth proportional to 90,163.12, 124,424.04 and 49,873.72 is: 68,825.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,163.12 : 124,424.04 = 49,873.72 : x
  2. Step 2: Convert to fraction form
    90,163.12/124,424.04 = 49,873.72/x
  3. Step 3: Cross multiply
    90,163.12x = 124,424.04 × 49,873.72
  4. Step 4: Simplify right side
    90,163.12x = 6,205,489,732.23
  5. Step 5: Solve for x
    x = 6,205,489,732.23/90,163.12
  6. Step 6: Final answer
    x = 68,825.14

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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.