Home / 89,919.09-124,090.20-49,632.75

Finding the Fourth Proportional to 89,919.09, 124,090.20 and 49,632.75

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Solution

The fourth proportional to 89,919.09, 124,090.20 and 49,632.75 is: 68,494.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,919.09 : 124,090.20 = 49,632.75 : x
  2. Step 2: Convert to fraction form
    89,919.09/124,090.20 = 49,632.75/x
  3. Step 3: Cross multiply
    89,919.09x = 124,090.20 × 49,632.75
  4. Step 4: Simplify right side
    89,919.09x = 6,158,937,874.05
  5. Step 5: Solve for x
    x = 6,158,937,874.05/89,919.09
  6. Step 6: Final answer
    x = 68,494.22

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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.