Home / 77,320.34-115,783.61-50,945.12

Finding the Fourth Proportional to 77,320.34, 115,783.61 and 50,945.12

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Solution

The fourth proportional to 77,320.34, 115,783.61 and 50,945.12 is: 76,287.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,320.34 : 115,783.61 = 50,945.12 : x
  2. Step 2: Convert to fraction form
    77,320.34/115,783.61 = 50,945.12/x
  3. Step 3: Cross multiply
    77,320.34x = 115,783.61 × 50,945.12
  4. Step 4: Simplify right side
    77,320.34x = 5,898,609,071.84
  5. Step 5: Solve for x
    x = 5,898,609,071.84/77,320.34
  6. Step 6: Final answer
    x = 76,287.94

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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.