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Finding the Fourth Proportional to 68,166.77, 94,045.79 and 39,470.77

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Solution

The fourth proportional to 68,166.77, 94,045.79 and 39,470.77 is: 54,455.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,166.77 : 94,045.79 = 39,470.77 : x
  2. Step 2: Convert to fraction form
    68,166.77/94,045.79 = 39,470.77/x
  3. Step 3: Cross multiply
    68,166.77x = 94,045.79 × 39,470.77
  4. Step 4: Simplify right side
    68,166.77x = 3,712,059,610.12
  5. Step 5: Solve for x
    x = 3,712,059,610.12/68,166.77
  6. Step 6: Final answer
    x = 54,455.56

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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.