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Finding the Fourth Proportional to 65,361.30, 90,198.60 and 37,066.99

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Solution

The fourth proportional to 65,361.30, 90,198.60 and 37,066.99 is: 51,152.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,361.30 : 90,198.60 = 37,066.99 : x
  2. Step 2: Convert to fraction form
    65,361.30/90,198.60 = 37,066.99/x
  3. Step 3: Cross multiply
    65,361.30x = 90,198.60 × 37,066.99
  4. Step 4: Simplify right side
    65,361.30x = 3,343,390,818.90
  5. Step 5: Solve for x
    x = 3,343,390,818.90/65,361.30
  6. Step 6: Final answer
    x = 51,152.45

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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.