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Finding the Fourth Proportional to 65,521.88, 90,427.72 and 36,453.14

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Solution

The fourth proportional to 65,521.88, 90,427.72 and 36,453.14 is: 50,309.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,521.88 : 90,427.72 = 36,453.14 : x
  2. Step 2: Convert to fraction form
    65,521.88/90,427.72 = 36,453.14/x
  3. Step 3: Cross multiply
    65,521.88x = 90,427.72 × 36,453.14
  4. Step 4: Simplify right side
    65,521.88x = 3,296,374,337.04
  5. Step 5: Solve for x
    x = 3,296,374,337.04/65,521.88
  6. Step 6: Final answer
    x = 50,309.52

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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.