Home / 76,915.06-115,372.10-41,393.12

Finding the Fourth Proportional to 76,915.06, 115,372.10 and 41,393.12

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Solution

The fourth proportional to 76,915.06, 115,372.10 and 41,393.12 is: 62,089.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,915.06 : 115,372.10 = 41,393.12 : x
  2. Step 2: Convert to fraction form
    76,915.06/115,372.10 = 41,393.12/x
  3. Step 3: Cross multiply
    76,915.06x = 115,372.10 × 41,393.12
  4. Step 4: Simplify right side
    76,915.06x = 4,775,611,179.95
  5. Step 5: Solve for x
    x = 4,775,611,179.95/76,915.06
  6. Step 6: Final answer
    x = 62,089.42

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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.