Home / 76,682.61-115,024.28-26,762.49

Finding the Fourth Proportional to 76,682.61, 115,024.28 and 26,762.49

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Solution

The fourth proportional to 76,682.61, 115,024.28 and 26,762.49 is: 40,143.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,682.61 : 115,024.28 = 26,762.49 : x
  2. Step 2: Convert to fraction form
    76,682.61/115,024.28 = 26,762.49/x
  3. Step 3: Cross multiply
    76,682.61x = 115,024.28 × 26,762.49
  4. Step 4: Simplify right side
    76,682.61x = 3,078,336,009.44
  5. Step 5: Solve for x
    x = 3,078,336,009.44/76,682.61
  6. Step 6: Final answer
    x = 40,143.86

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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.