Home / 90,407.84-124,759.44-50,661.28

Finding the Fourth Proportional to 90,407.84, 124,759.44 and 50,661.28

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Solution

The fourth proportional to 90,407.84, 124,759.44 and 50,661.28 is: 69,910.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,407.84 : 124,759.44 = 50,661.28 : x
  2. Step 2: Convert to fraction form
    90,407.84/124,759.44 = 50,661.28/x
  3. Step 3: Cross multiply
    90,407.84x = 124,759.44 × 50,661.28
  4. Step 4: Simplify right side
    90,407.84x = 6,320,472,922.48
  5. Step 5: Solve for x
    x = 6,320,472,922.48/90,407.84
  6. Step 6: Final answer
    x = 69,910.67

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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.