Home / 56,108.56-77,431.44-30,959.68

Finding the Fourth Proportional to 56,108.56, 77,431.44 and 30,959.68

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Solution

The fourth proportional to 56,108.56, 77,431.44 and 30,959.68 is: 42,725.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,108.56 : 77,431.44 = 30,959.68 : x
  2. Step 2: Convert to fraction form
    56,108.56/77,431.44 = 30,959.68/x
  3. Step 3: Cross multiply
    56,108.56x = 77,431.44 × 30,959.68
  4. Step 4: Simplify right side
    56,108.56x = 2,397,252,720.52
  5. Step 5: Solve for x
    x = 2,397,252,720.52/56,108.56
  6. Step 6: Final answer
    x = 42,725.26

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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.