Home / 77,838.19-107,410.32-43,835.81

Finding the Fourth Proportional to 77,838.19, 107,410.32 and 43,835.81

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Solution

The fourth proportional to 77,838.19, 107,410.32 and 43,835.81 is: 60,489.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,838.19 : 107,410.32 = 43,835.81 : x
  2. Step 2: Convert to fraction form
    77,838.19/107,410.32 = 43,835.81/x
  3. Step 3: Cross multiply
    77,838.19x = 107,410.32 × 43,835.81
  4. Step 4: Simplify right side
    77,838.19x = 4,708,417,842.51
  5. Step 5: Solve for x
    x = 4,708,417,842.51/77,838.19
  6. Step 6: Final answer
    x = 60,489.82

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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.