Home / 90,409.08-124,768.48-50,120.28

Finding the Fourth Proportional to 90,409.08, 124,768.48 and 50,120.28

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Solution

The fourth proportional to 90,409.08, 124,768.48 and 50,120.28 is: 69,168.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,409.08 : 124,768.48 = 50,120.28 : x
  2. Step 2: Convert to fraction form
    90,409.08/124,768.48 = 50,120.28/x
  3. Step 3: Cross multiply
    90,409.08x = 124,768.48 × 50,120.28
  4. Step 4: Simplify right side
    90,409.08x = 6,253,430,902.17
  5. Step 5: Solve for x
    x = 6,253,430,902.17/90,409.08
  6. Step 6: Final answer
    x = 69,168.18

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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.