Home / 85,438.41-117,915.17-62,785.14

Finding the Fourth Proportional to 85,438.41, 117,915.17 and 62,785.14

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Solution

The fourth proportional to 85,438.41, 117,915.17 and 62,785.14 is: 86,650.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,438.41 : 117,915.17 = 62,785.14 : x
  2. Step 2: Convert to fraction form
    85,438.41/117,915.17 = 62,785.14/x
  3. Step 3: Cross multiply
    85,438.41x = 117,915.17 × 62,785.14
  4. Step 4: Simplify right side
    85,438.41x = 7,403,320,142.65
  5. Step 5: Solve for x
    x = 7,403,320,142.65/85,438.41
  6. Step 6: Final answer
    x = 86,650.96

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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.