Home / 77,816.93-107,397.79-45,561.38

Finding the Fourth Proportional to 77,816.93, 107,397.79 and 45,561.38

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Solution

The fourth proportional to 77,816.93, 107,397.79 and 45,561.38 is: 62,880.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,816.93 : 107,397.79 = 45,561.38 : x
  2. Step 2: Convert to fraction form
    77,816.93/107,397.79 = 45,561.38/x
  3. Step 3: Cross multiply
    77,816.93x = 107,397.79 × 45,561.38
  4. Step 4: Simplify right side
    77,816.93x = 4,893,190,984.36
  5. Step 5: Solve for x
    x = 4,893,190,984.36/77,816.93
  6. Step 6: Final answer
    x = 62,880.81

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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.