Home / 85,732.20-118,314.18-48,005.64

Finding the Fourth Proportional to 85,732.20, 118,314.18 and 48,005.64

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Solution

The fourth proportional to 85,732.20, 118,314.18 and 48,005.64 is: 66,249.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,732.20 : 118,314.18 = 48,005.64 : x
  2. Step 2: Convert to fraction form
    85,732.20/118,314.18 = 48,005.64/x
  3. Step 3: Cross multiply
    85,732.20x = 118,314.18 × 48,005.64
  4. Step 4: Simplify right side
    85,732.20x = 5,679,747,931.98
  5. Step 5: Solve for x
    x = 5,679,747,931.98/85,732.20
  6. Step 6: Final answer
    x = 66,249.88

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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.