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Finding the Fourth Proportional to 65,261.60, 90,060.94 and 36,972.76

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Solution

The fourth proportional to 65,261.60, 90,060.94 and 36,972.76 is: 51,022.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,261.60 : 90,060.94 = 36,972.76 : x
  2. Step 2: Convert to fraction form
    65,261.60/90,060.94 = 36,972.76/x
  3. Step 3: Cross multiply
    65,261.60x = 90,060.94 × 36,972.76
  4. Step 4: Simplify right side
    65,261.60x = 3,329,801,519.99
  5. Step 5: Solve for x
    x = 3,329,801,519.99/65,261.60
  6. Step 6: Final answer
    x = 51,022.37

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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.