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Finding the Fourth Proportional to 61,768.68, 85,238.70 and 36,274.56

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Solution

The fourth proportional to 61,768.68, 85,238.70 and 36,274.56 is: 50,057.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,768.68 : 85,238.70 = 36,274.56 : x
  2. Step 2: Convert to fraction form
    61,768.68/85,238.70 = 36,274.56/x
  3. Step 3: Cross multiply
    61,768.68x = 85,238.70 × 36,274.56
  4. Step 4: Simplify right side
    61,768.68x = 3,091,996,337.47
  5. Step 5: Solve for x
    x = 3,091,996,337.47/61,768.68
  6. Step 6: Final answer
    x = 50,057.67

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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.