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Finding the Fourth Proportional to 77,343.16, 106,738.11 and 43,362.79

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Solution

The fourth proportional to 77,343.16, 106,738.11 and 43,362.79 is: 59,843.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,343.16 : 106,738.11 = 43,362.79 : x
  2. Step 2: Convert to fraction form
    77,343.16/106,738.11 = 43,362.79/x
  3. Step 3: Cross multiply
    77,343.16x = 106,738.11 × 43,362.79
  4. Step 4: Simplify right side
    77,343.16x = 4,628,462,248.93
  5. Step 5: Solve for x
    x = 4,628,462,248.93/77,343.16
  6. Step 6: Final answer
    x = 59,843.20

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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.