Home / 76,840.12-115,263.78-37,350.16

Finding the Fourth Proportional to 76,840.12, 115,263.78 and 37,350.16

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Solution

The fourth proportional to 76,840.12, 115,263.78 and 37,350.16 is: 56,026.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,840.12 : 115,263.78 = 37,350.16 : x
  2. Step 2: Convert to fraction form
    76,840.12/115,263.78 = 37,350.16/x
  3. Step 3: Cross multiply
    76,840.12x = 115,263.78 × 37,350.16
  4. Step 4: Simplify right side
    76,840.12x = 4,305,120,625.20
  5. Step 5: Solve for x
    x = 4,305,120,625.20/76,840.12
  6. Step 6: Final answer
    x = 56,026.99

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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.