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Finding the Fourth Proportional to 56,148.73, 77,392.92 and 39,801.41

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Solution

The fourth proportional to 56,148.73, 77,392.92 and 39,801.41 is: 54,860.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,148.73 : 77,392.92 = 39,801.41 : x
  2. Step 2: Convert to fraction form
    56,148.73/77,392.92 = 39,801.41/x
  3. Step 3: Cross multiply
    56,148.73x = 77,392.92 × 39,801.41
  4. Step 4: Simplify right side
    56,148.73x = 3,080,346,953.05
  5. Step 5: Solve for x
    x = 3,080,346,953.05/56,148.73
  6. Step 6: Final answer
    x = 54,860.50

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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.