Home / 56,173.58-77,387.69-39,146.87

Finding the Fourth Proportional to 56,173.58, 77,387.69 and 39,146.87

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Solution

The fourth proportional to 56,173.58, 77,387.69 and 39,146.87 is: 53,930.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,173.58 : 77,387.69 = 39,146.87 : x
  2. Step 2: Convert to fraction form
    56,173.58/77,387.69 = 39,146.87/x
  3. Step 3: Cross multiply
    56,173.58x = 77,387.69 × 39,146.87
  4. Step 4: Simplify right side
    56,173.58x = 3,029,485,644.30
  5. Step 5: Solve for x
    x = 3,029,485,644.30/56,173.58
  6. Step 6: Final answer
    x = 53,930.79

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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.