Home / 76,939.50-115,428.72-23,634.12

Finding the Fourth Proportional to 76,939.50, 115,428.72 and 23,634.12

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Solution

The fourth proportional to 76,939.50, 115,428.72 and 23,634.12 is: 35,457.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,939.50 : 115,428.72 = 23,634.12 : x
  2. Step 2: Convert to fraction form
    76,939.50/115,428.72 = 23,634.12/x
  3. Step 3: Cross multiply
    76,939.50x = 115,428.72 × 23,634.12
  4. Step 4: Simplify right side
    76,939.50x = 2,728,056,219.93
  5. Step 5: Solve for x
    x = 2,728,056,219.93/76,939.50
  6. Step 6: Final answer
    x = 35,457.16

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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.