Home / 85,558.42-118,015-54,882.97

Finding the Fourth Proportional to 85,558.42, 118,015 and 54,882.97

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Solution

The fourth proportional to 85,558.42, 118,015 and 54,882.97 is: 75,702.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,558.42 : 118,015 = 54,882.97 : x
  2. Step 2: Convert to fraction form
    85,558.42/118,015 = 54,882.97/x
  3. Step 3: Cross multiply
    85,558.42x = 118,015 × 54,882.97
  4. Step 4: Simplify right side
    85,558.42x = 6,477,013,704.55
  5. Step 5: Solve for x
    x = 6,477,013,704.55/85,558.42
  6. Step 6: Final answer
    x = 75,702.82

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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.