Home / 56,399.99-77,818.26-31,249.49

Finding the Fourth Proportional to 56,399.99, 77,818.26 and 31,249.49

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Solution

The fourth proportional to 56,399.99, 77,818.26 and 31,249.49 is: 43,116.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,399.99 : 77,818.26 = 31,249.49 : x
  2. Step 2: Convert to fraction form
    56,399.99/77,818.26 = 31,249.49/x
  3. Step 3: Cross multiply
    56,399.99x = 77,818.26 × 31,249.49
  4. Step 4: Simplify right side
    56,399.99x = 2,431,780,548.60
  5. Step 5: Solve for x
    x = 2,431,780,548.60/56,399.99
  6. Step 6: Final answer
    x = 43,116.69

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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.