Home / 74,921.58-103,344.32-56,977.25

Finding the Fourth Proportional to 74,921.58, 103,344.32 and 56,977.25

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Solution

The fourth proportional to 74,921.58, 103,344.32 and 56,977.25 is: 78,592.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,921.58 : 103,344.32 = 56,977.25 : x
  2. Step 2: Convert to fraction form
    74,921.58/103,344.32 = 56,977.25/x
  3. Step 3: Cross multiply
    74,921.58x = 103,344.32 × 56,977.25
  4. Step 4: Simplify right side
    74,921.58x = 5,888,274,782.44
  5. Step 5: Solve for x
    x = 5,888,274,782.44/74,921.58
  6. Step 6: Final answer
    x = 78,592.51

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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.