Home / 90,411.30-124,774.99-50,137.70

Finding the Fourth Proportional to 90,411.30, 124,774.99 and 50,137.70

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Solution

The fourth proportional to 90,411.30, 124,774.99 and 50,137.70 is: 69,194.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,411.30 : 124,774.99 = 50,137.70 : x
  2. Step 2: Convert to fraction form
    90,411.30/124,774.99 = 50,137.70/x
  3. Step 3: Cross multiply
    90,411.30x = 124,774.99 × 50,137.70
  4. Step 4: Simplify right side
    90,411.30x = 6,255,930,266.90
  5. Step 5: Solve for x
    x = 6,255,930,266.90/90,411.30
  6. Step 6: Final answer
    x = 69,194.12

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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.