Home / 90,279.26-124,583.72-49,992.90

Finding the Fourth Proportional to 90,279.26, 124,583.72 and 49,992.90

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Solution

The fourth proportional to 90,279.26, 124,583.72 and 49,992.90 is: 68,989.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,279.26 : 124,583.72 = 49,992.90 : x
  2. Step 2: Convert to fraction form
    90,279.26/124,583.72 = 49,992.90/x
  3. Step 3: Cross multiply
    90,279.26x = 124,583.72 × 49,992.90
  4. Step 4: Simplify right side
    90,279.26x = 6,228,301,019.64
  5. Step 5: Solve for x
    x = 6,228,301,019.64/90,279.26
  6. Step 6: Final answer
    x = 68,989.28

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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.