Home / 76,961.63-115,459.76-27,045.18

Finding the Fourth Proportional to 76,961.63, 115,459.76 and 27,045.18

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Solution

The fourth proportional to 76,961.63, 115,459.76 and 27,045.18 is: 40,573.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,961.63 : 115,459.76 = 27,045.18 : x
  2. Step 2: Convert to fraction form
    76,961.63/115,459.76 = 27,045.18/x
  3. Step 3: Cross multiply
    76,961.63x = 115,459.76 × 27,045.18
  4. Step 4: Simplify right side
    76,961.63x = 3,122,629,279.43
  5. Step 5: Solve for x
    x = 3,122,629,279.43/76,961.63
  6. Step 6: Final answer
    x = 40,573.85

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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.