Home / 56,992.10-78,659.82-33,120.08

Finding the Fourth Proportional to 56,992.10, 78,659.82 and 33,120.08

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Solution

The fourth proportional to 56,992.10, 78,659.82 and 33,120.08 is: 45,711.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,992.10 : 78,659.82 = 33,120.08 : x
  2. Step 2: Convert to fraction form
    56,992.10/78,659.82 = 33,120.08/x
  3. Step 3: Cross multiply
    56,992.10x = 78,659.82 × 33,120.08
  4. Step 4: Simplify right side
    56,992.10x = 2,605,219,531.19
  5. Step 5: Solve for x
    x = 2,605,219,531.19/56,992.10
  6. Step 6: Final answer
    x = 45,711.94

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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.