Home / 90,965.10-125,516.88-50,669.76

Finding the Fourth Proportional to 90,965.10, 125,516.88 and 50,669.76

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Solution

The fourth proportional to 90,965.10, 125,516.88 and 50,669.76 is: 69,915.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,965.10 : 125,516.88 = 50,669.76 : x
  2. Step 2: Convert to fraction form
    90,965.10/125,516.88 = 50,669.76/x
  3. Step 3: Cross multiply
    90,965.10x = 125,516.88 × 50,669.76
  4. Step 4: Simplify right side
    90,965.10x = 6,359,910,185.55
  5. Step 5: Solve for x
    x = 6,359,910,185.55/90,965.10
  6. Step 6: Final answer
    x = 69,915.94

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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.