Home / 79,514.47-109,730.82-43,215.92

Finding the Fourth Proportional to 79,514.47, 109,730.82 and 43,215.92

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Solution

The fourth proportional to 79,514.47, 109,730.82 and 43,215.92 is: 59,638.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,514.47 : 109,730.82 = 43,215.92 : x
  2. Step 2: Convert to fraction form
    79,514.47/109,730.82 = 43,215.92/x
  3. Step 3: Cross multiply
    79,514.47x = 109,730.82 × 43,215.92
  4. Step 4: Simplify right side
    79,514.47x = 4,742,118,338.65
  5. Step 5: Solve for x
    x = 4,742,118,338.65/79,514.47
  6. Step 6: Final answer
    x = 59,638.43

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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.