Home / 77,118.42-106,422.68-43,126.52

Finding the Fourth Proportional to 77,118.42, 106,422.68 and 43,126.52

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Solution

The fourth proportional to 77,118.42, 106,422.68 and 43,126.52 is: 59,514.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,118.42 : 106,422.68 = 43,126.52 : x
  2. Step 2: Convert to fraction form
    77,118.42/106,422.68 = 43,126.52/x
  3. Step 3: Cross multiply
    77,118.42x = 106,422.68 × 43,126.52
  4. Step 4: Simplify right side
    77,118.42x = 4,589,639,621.84
  5. Step 5: Solve for x
    x = 4,589,639,621.84/77,118.42
  6. Step 6: Final answer
    x = 59,514.18

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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.