Home / 77,945.47-107,565.73-47,309.69

Finding the Fourth Proportional to 77,945.47, 107,565.73 and 47,309.69

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Solution

The fourth proportional to 77,945.47, 107,565.73 and 47,309.69 is: 65,287.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,945.47 : 107,565.73 = 47,309.69 : x
  2. Step 2: Convert to fraction form
    77,945.47/107,565.73 = 47,309.69/x
  3. Step 3: Cross multiply
    77,945.47x = 107,565.73 × 47,309.69
  4. Step 4: Simplify right side
    77,945.47x = 5,088,901,491.56
  5. Step 5: Solve for x
    x = 5,088,901,491.56/77,945.47
  6. Step 6: Final answer
    x = 65,287.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.