Home / 56,120.82-77,454.10-39,114.06

Finding the Fourth Proportional to 56,120.82, 77,454.10 and 39,114.06

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Solution

The fourth proportional to 56,120.82, 77,454.10 and 39,114.06 is: 53,982.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,120.82 : 77,454.10 = 39,114.06 : x
  2. Step 2: Convert to fraction form
    56,120.82/77,454.10 = 39,114.06/x
  3. Step 3: Cross multiply
    56,120.82x = 77,454.10 × 39,114.06
  4. Step 4: Simplify right side
    56,120.82x = 3,029,544,314.65
  5. Step 5: Solve for x
    x = 3,029,544,314.65/56,120.82
  6. Step 6: Final answer
    x = 53,982.54

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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.