Home / 90,144.34-124,408.26-49,861.17

Finding the Fourth Proportional to 90,144.34, 124,408.26 and 49,861.17

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Solution

The fourth proportional to 90,144.34, 124,408.26 and 49,861.17 is: 68,813.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,144.34 : 124,408.26 = 49,861.17 : x
  2. Step 2: Convert to fraction form
    90,144.34/124,408.26 = 49,861.17/x
  3. Step 3: Cross multiply
    90,144.34x = 124,408.26 × 49,861.17
  4. Step 4: Simplify right side
    90,144.34x = 6,203,140,779.22
  5. Step 5: Solve for x
    x = 6,203,140,779.22/90,144.34
  6. Step 6: Final answer
    x = 68,813.43

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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.