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Finding the Fourth Proportional to 77,365.73, 106,772.27 and 43,374.28

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Solution

The fourth proportional to 77,365.73, 106,772.27 and 43,374.28 is: 59,860.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,365.73 : 106,772.27 = 43,374.28 : x
  2. Step 2: Convert to fraction form
    77,365.73/106,772.27 = 43,374.28/x
  3. Step 3: Cross multiply
    77,365.73x = 106,772.27 × 43,374.28
  4. Step 4: Simplify right side
    77,365.73x = 4,631,170,335.22
  5. Step 5: Solve for x
    x = 4,631,170,335.22/77,365.73
  6. Step 6: Final answer
    x = 59,860.75

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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.