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Finding the Fourth Proportional to 85,060.94, 127,455.32 and 72,541.58

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Solution

The fourth proportional to 85,060.94, 127,455.32 and 72,541.58 is: 108,696.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,060.94 : 127,455.32 = 72,541.58 : x
  2. Step 2: Convert to fraction form
    85,060.94/127,455.32 = 72,541.58/x
  3. Step 3: Cross multiply
    85,060.94x = 127,455.32 × 72,541.58
  4. Step 4: Simplify right side
    85,060.94x = 9,245,809,836.28
  5. Step 5: Solve for x
    x = 9,245,809,836.28/85,060.94
  6. Step 6: Final answer
    x = 108,696.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.