Home / 56,174.08-77,388.38-39,147.37

Finding the Fourth Proportional to 56,174.08, 77,388.38 and 39,147.37

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Solution

The fourth proportional to 56,174.08, 77,388.38 and 39,147.37 is: 53,931.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,174.08 : 77,388.38 = 39,147.37 : x
  2. Step 2: Convert to fraction form
    56,174.08/77,388.38 = 39,147.37/x
  3. Step 3: Cross multiply
    56,174.08x = 77,388.38 × 39,147.37
  4. Step 4: Simplify right side
    56,174.08x = 3,029,551,349.82
  5. Step 5: Solve for x
    x = 3,029,551,349.82/56,174.08
  6. Step 6: Final answer
    x = 53,931.48

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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.