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Finding the Fourth Proportional to 57,322.60, 85,983.90 and 43,325.80

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Solution

The fourth proportional to 57,322.60, 85,983.90 and 43,325.80 is: 64,988.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,322.60 : 85,983.90 = 43,325.80 : x
  2. Step 2: Convert to fraction form
    57,322.60/85,983.90 = 43,325.80/x
  3. Step 3: Cross multiply
    57,322.60x = 85,983.90 × 43,325.80
  4. Step 4: Simplify right side
    57,322.60x = 3,725,321,254.62
  5. Step 5: Solve for x
    x = 3,725,321,254.62/57,322.60
  6. Step 6: Final answer
    x = 64,988.70

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.