Home / 77,908-107,510.76-43,918.48

Finding the Fourth Proportional to 77,908, 107,510.76 and 43,918.48

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Solution

The fourth proportional to 77,908, 107,510.76 and 43,918.48 is: 60,606.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,908 : 107,510.76 = 43,918.48 : x
  2. Step 2: Convert to fraction form
    77,908/107,510.76 = 43,918.48/x
  3. Step 3: Cross multiply
    77,908x = 107,510.76 × 43,918.48
  4. Step 4: Simplify right side
    77,908x = 4,721,709,162.84
  5. Step 5: Solve for x
    x = 4,721,709,162.84/77,908
  6. Step 6: Final answer
    x = 60,606.22

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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.