Home / 56,146.20-77,481.24-30,995.64

Finding the Fourth Proportional to 56,146.20, 77,481.24 and 30,995.64

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Solution

The fourth proportional to 56,146.20, 77,481.24 and 30,995.64 is: 42,773.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,146.20 : 77,481.24 = 30,995.64 : x
  2. Step 2: Convert to fraction form
    56,146.20/77,481.24 = 30,995.64/x
  3. Step 3: Cross multiply
    56,146.20x = 77,481.24 × 30,995.64
  4. Step 4: Simplify right side
    56,146.20x = 2,401,580,621.79
  5. Step 5: Solve for x
    x = 2,401,580,621.79/56,146.20
  6. Step 6: Final answer
    x = 42,773.70

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1.5x scale

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.