Home / 74,924.72-112,403.51-28,177.60

Finding the Fourth Proportional to 74,924.72, 112,403.51 and 28,177.60

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Solution

The fourth proportional to 74,924.72, 112,403.51 and 28,177.60 is: 42,272.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,924.72 : 112,403.51 = 28,177.60 : x
  2. Step 2: Convert to fraction form
    74,924.72/112,403.51 = 28,177.60/x
  3. Step 3: Cross multiply
    74,924.72x = 112,403.51 × 28,177.60
  4. Step 4: Simplify right side
    74,924.72x = 3,167,261,143.38
  5. Step 5: Solve for x
    x = 3,167,261,143.38/74,924.72
  6. Step 6: Final answer
    x = 42,272.58

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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.