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Finding the Fourth Proportional to 65,952.21, 91,015.74 and 37,660.53

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Solution

The fourth proportional to 65,952.21, 91,015.74 and 37,660.53 is: 51,972.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,952.21 : 91,015.74 = 37,660.53 : x
  2. Step 2: Convert to fraction form
    65,952.21/91,015.74 = 37,660.53/x
  3. Step 3: Cross multiply
    65,952.21x = 91,015.74 × 37,660.53
  4. Step 4: Simplify right side
    65,952.21x = 3,427,701,006.74
  5. Step 5: Solve for x
    x = 3,427,701,006.74/65,952.21
  6. Step 6: Final answer
    x = 51,972.50

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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.