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Finding the Fourth Proportional to 77,340.54, 106,736.67 and 45,073.47

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Solution

The fourth proportional to 77,340.54, 106,736.67 and 45,073.47 is: 62,205.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,340.54 : 106,736.67 = 45,073.47 : x
  2. Step 2: Convert to fraction form
    77,340.54/106,736.67 = 45,073.47/x
  3. Step 3: Cross multiply
    77,340.54x = 106,736.67 × 45,073.47
  4. Step 4: Simplify right side
    77,340.54x = 4,810,992,093.14
  5. Step 5: Solve for x
    x = 4,810,992,093.14/77,340.54
  6. Step 6: Final answer
    x = 62,205.31

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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.