Home / 74,922.24-112,399.78-28,175.10

Finding the Fourth Proportional to 74,922.24, 112,399.78 and 28,175.10

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Solution

The fourth proportional to 74,922.24, 112,399.78 and 28,175.10 is: 42,268.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,922.24 : 112,399.78 = 28,175.10 : x
  2. Step 2: Convert to fraction form
    74,922.24/112,399.78 = 28,175.10/x
  3. Step 3: Cross multiply
    74,922.24x = 112,399.78 × 28,175.10
  4. Step 4: Simplify right side
    74,922.24x = 3,166,875,041.48
  5. Step 5: Solve for x
    x = 3,166,875,041.48/74,922.24
  6. Step 6: Final answer
    x = 42,268.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.