Home / 90,033.88-124,240.36-49,747.21

Finding the Fourth Proportional to 90,033.88, 124,240.36 and 49,747.21

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Solution

The fourth proportional to 90,033.88, 124,240.36 and 49,747.21 is: 68,647.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,033.88 : 124,240.36 = 49,747.21 : x
  2. Step 2: Convert to fraction form
    90,033.88/124,240.36 = 49,747.21/x
  3. Step 3: Cross multiply
    90,033.88x = 124,240.36 × 49,747.21
  4. Step 4: Simplify right side
    90,033.88x = 6,180,611,279.40
  5. Step 5: Solve for x
    x = 6,180,611,279.40/90,033.88
  6. Step 6: Final answer
    x = 68,647.62

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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.