Home / 75,780.72-104,565.24-43,943.40

Finding the Fourth Proportional to 75,780.72, 104,565.24 and 43,943.40

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Solution

The fourth proportional to 75,780.72, 104,565.24 and 43,943.40 is: 60,634.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,780.72 : 104,565.24 = 43,943.40 : x
  2. Step 2: Convert to fraction form
    75,780.72/104,565.24 = 43,943.40/x
  3. Step 3: Cross multiply
    75,780.72x = 104,565.24 × 43,943.40
  4. Step 4: Simplify right side
    75,780.72x = 4,594,952,167.42
  5. Step 5: Solve for x
    x = 4,594,952,167.42/75,780.72
  6. Step 6: Final answer
    x = 60,634.84

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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.