Home / 85,412.08-117,861.88-49,596.20

Finding the Fourth Proportional to 85,412.08, 117,861.88 and 49,596.20

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Solution

The fourth proportional to 85,412.08, 117,861.88 and 49,596.20 is: 68,438.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,412.08 : 117,861.88 = 49,596.20 : x
  2. Step 2: Convert to fraction form
    85,412.08/117,861.88 = 49,596.20/x
  3. Step 3: Cross multiply
    85,412.08x = 117,861.88 × 49,596.20
  4. Step 4: Simplify right side
    85,412.08x = 5,845,501,372.86
  5. Step 5: Solve for x
    x = 5,845,501,372.86/85,412.08
  6. Step 6: Final answer
    x = 68,438.81

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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.