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Finding the Fourth Proportional to 77,753.54, 107,300.34 and 43,762.70

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Solution

The fourth proportional to 77,753.54, 107,300.34 and 43,762.70 is: 60,392.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,753.54 : 107,300.34 = 43,762.70 : x
  2. Step 2: Convert to fraction form
    77,753.54/107,300.34 = 43,762.70/x
  3. Step 3: Cross multiply
    77,753.54x = 107,300.34 × 43,762.70
  4. Step 4: Simplify right side
    77,753.54x = 4,695,752,589.32
  5. Step 5: Solve for x
    x = 4,695,752,589.32/77,753.54
  6. Step 6: Final answer
    x = 60,392.78

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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.