Home / 77,543.16-107,015.64-43,553.92

Finding the Fourth Proportional to 77,543.16, 107,015.64 and 43,553.92

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Solution

The fourth proportional to 77,543.16, 107,015.64 and 43,553.92 is: 60,107.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,543.16 : 107,015.64 = 43,553.92 : x
  2. Step 2: Convert to fraction form
    77,543.16/107,015.64 = 43,553.92/x
  3. Step 3: Cross multiply
    77,543.16x = 107,015.64 × 43,553.92
  4. Step 4: Simplify right side
    77,543.16x = 4,660,950,623.31
  5. Step 5: Solve for x
    x = 4,660,950,623.31/77,543.16
  6. Step 6: Final answer
    x = 60,107.82

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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.