Home / 75,934.64-104,789.79-42,400.64

Finding the Fourth Proportional to 75,934.64, 104,789.79 and 42,400.64

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Solution

The fourth proportional to 75,934.64, 104,789.79 and 42,400.64 is: 58,512.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,934.64 : 104,789.79 = 42,400.64 : x
  2. Step 2: Convert to fraction form
    75,934.64/104,789.79 = 42,400.64/x
  3. Step 3: Cross multiply
    75,934.64x = 104,789.79 × 42,400.64
  4. Step 4: Simplify right side
    75,934.64x = 4,443,153,637.52
  5. Step 5: Solve for x
    x = 4,443,153,637.52/75,934.64
  6. Step 6: Final answer
    x = 58,512.87

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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.