Home / 75,379.21-104,031.59-43,116.81

Finding the Fourth Proportional to 75,379.21, 104,031.59 and 43,116.81

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Solution

The fourth proportional to 75,379.21, 104,031.59 and 43,116.81 is: 59,505.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,379.21 : 104,031.59 = 43,116.81 : x
  2. Step 2: Convert to fraction form
    75,379.21/104,031.59 = 43,116.81/x
  3. Step 3: Cross multiply
    75,379.21x = 104,031.59 × 43,116.81
  4. Step 4: Simplify right side
    75,379.21x = 4,485,509,936.86
  5. Step 5: Solve for x
    x = 4,485,509,936.86/75,379.21
  6. Step 6: Final answer
    x = 59,505.93

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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.