Home / 76,749.13-114,983.43-55,636.81

Finding the Fourth Proportional to 76,749.13, 114,983.43 and 55,636.81

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Solution

The fourth proportional to 76,749.13, 114,983.43 and 55,636.81 is: 83,353.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,749.13 : 114,983.43 = 55,636.81 : x
  2. Step 2: Convert to fraction form
    76,749.13/114,983.43 = 55,636.81/x
  3. Step 3: Cross multiply
    76,749.13x = 114,983.43 × 55,636.81
  4. Step 4: Simplify right side
    76,749.13x = 6,397,311,248.06
  5. Step 5: Solve for x
    x = 6,397,311,248.06/76,749.13
  6. Step 6: Final answer
    x = 83,353.53

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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.