Home / 75,400.52-104,048.64-43,135.79

Finding the Fourth Proportional to 75,400.52, 104,048.64 and 43,135.79

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Solution

The fourth proportional to 75,400.52, 104,048.64 and 43,135.79 is: 59,525.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,400.52 : 104,048.64 = 43,135.79 : x
  2. Step 2: Convert to fraction form
    75,400.52/104,048.64 = 43,135.79/x
  3. Step 3: Cross multiply
    75,400.52x = 104,048.64 × 43,135.79
  4. Step 4: Simplify right side
    75,400.52x = 4,488,219,764.58
  5. Step 5: Solve for x
    x = 4,488,219,764.58/75,400.52
  6. Step 6: Final answer
    x = 59,525.05

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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.