Home / 56,231.49-77,601.12-30,739.26

Finding the Fourth Proportional to 56,231.49, 77,601.12 and 30,739.26

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Solution

The fourth proportional to 56,231.49, 77,601.12 and 30,739.26 is: 42,421.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,231.49 : 77,601.12 = 30,739.26 : x
  2. Step 2: Convert to fraction form
    56,231.49/77,601.12 = 30,739.26/x
  3. Step 3: Cross multiply
    56,231.49x = 77,601.12 × 30,739.26
  4. Step 4: Simplify right side
    56,231.49x = 2,385,401,003.97
  5. Step 5: Solve for x
    x = 2,385,401,003.97/56,231.49
  6. Step 6: Final answer
    x = 42,421.09

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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.