Home / 77,880.42-107,475.47-45,634.09

Finding the Fourth Proportional to 77,880.42, 107,475.47 and 45,634.09

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Solution

The fourth proportional to 77,880.42, 107,475.47 and 45,634.09 is: 62,975.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,880.42 : 107,475.47 = 45,634.09 : x
  2. Step 2: Convert to fraction form
    77,880.42/107,475.47 = 45,634.09/x
  3. Step 3: Cross multiply
    77,880.42x = 107,475.47 × 45,634.09
  4. Step 4: Simplify right side
    77,880.42x = 4,904,545,270.77
  5. Step 5: Solve for x
    x = 4,904,545,270.77/77,880.42
  6. Step 6: Final answer
    x = 62,975.33

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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.