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Finding the Fourth Proportional to 89,420.80, 134,082.60 and 36,835.60

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Solution

The fourth proportional to 89,420.80, 134,082.60 and 36,835.60 is: 55,233.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,420.80 : 134,082.60 = 36,835.60 : x
  2. Step 2: Convert to fraction form
    89,420.80/134,082.60 = 36,835.60/x
  3. Step 3: Cross multiply
    89,420.80x = 134,082.60 × 36,835.60
  4. Step 4: Simplify right side
    89,420.80x = 4,939,013,020.56
  5. Step 5: Solve for x
    x = 4,939,013,020.56/89,420.80
  6. Step 6: Final answer
    x = 55,233.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.