Home / 76,695.42-114,985.70-51,665.22

Finding the Fourth Proportional to 76,695.42, 114,985.70 and 51,665.22

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Solution

The fourth proportional to 76,695.42, 114,985.70 and 51,665.22 is: 77,459.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,695.42 : 114,985.70 = 51,665.22 : x
  2. Step 2: Convert to fraction form
    76,695.42/114,985.70 = 51,665.22/x
  3. Step 3: Cross multiply
    76,695.42x = 114,985.70 × 51,665.22
  4. Step 4: Simplify right side
    76,695.42x = 5,940,761,487.35
  5. Step 5: Solve for x
    x = 5,940,761,487.35/76,695.42
  6. Step 6: Final answer
    x = 77,459.14

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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.