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Finding the Fourth Proportional to 81,274.73, 112,159.54 and 45,464.73

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Solution

The fourth proportional to 81,274.73, 112,159.54 and 45,464.73 is: 62,741.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,274.73 : 112,159.54 = 45,464.73 : x
  2. Step 2: Convert to fraction form
    81,274.73/112,159.54 = 45,464.73/x
  3. Step 3: Cross multiply
    81,274.73x = 112,159.54 × 45,464.73
  4. Step 4: Simplify right side
    81,274.73x = 5,099,303,203.02
  5. Step 5: Solve for x
    x = 5,099,303,203.02/81,274.73
  6. Step 6: Final answer
    x = 62,741.56

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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.