Home / 90,498.12-124,881.96-50,209.49

Finding the Fourth Proportional to 90,498.12, 124,881.96 and 50,209.49

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Solution

The fourth proportional to 90,498.12, 124,881.96 and 50,209.49 is: 69,286.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,498.12 : 124,881.96 = 50,209.49 : x
  2. Step 2: Convert to fraction form
    90,498.12/124,881.96 = 50,209.49/x
  3. Step 3: Cross multiply
    90,498.12x = 124,881.96 × 50,209.49
  4. Step 4: Simplify right side
    90,498.12x = 6,270,258,897.39
  5. Step 5: Solve for x
    x = 6,270,258,897.39/90,498.12
  6. Step 6: Final answer
    x = 69,286.07

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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.