Home / 77,970.33-107,634.83-51,113.97

Finding the Fourth Proportional to 77,970.33, 107,634.83 and 51,113.97

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Solution

The fourth proportional to 77,970.33, 107,634.83 and 51,113.97 is: 70,560.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,970.33 : 107,634.83 = 51,113.97 : x
  2. Step 2: Convert to fraction form
    77,970.33/107,634.83 = 51,113.97/x
  3. Step 3: Cross multiply
    77,970.33x = 107,634.83 × 51,113.97
  4. Step 4: Simplify right side
    77,970.33x = 5,501,643,216.01
  5. Step 5: Solve for x
    x = 5,501,643,216.01/77,970.33
  6. Step 6: Final answer
    x = 70,560.73

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1.5x scale

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.