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Finding the Fourth Proportional to 65,361.60, 90,200.28 and 37,066.80

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Solution

The fourth proportional to 65,361.60, 90,200.28 and 37,066.80 is: 51,152.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,361.60 : 90,200.28 = 37,066.80 : x
  2. Step 2: Convert to fraction form
    65,361.60/90,200.28 = 37,066.80/x
  3. Step 3: Cross multiply
    65,361.60x = 90,200.28 × 37,066.80
  4. Step 4: Simplify right side
    65,361.60x = 3,343,435,738.70
  5. Step 5: Solve for x
    x = 3,343,435,738.70/65,361.60
  6. Step 6: Final answer
    x = 51,152.91

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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.