Home / 74,850.56-112,260.48-28,102.40

Finding the Fourth Proportional to 74,850.56, 112,260.48 and 28,102.40

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Solution

The fourth proportional to 74,850.56, 112,260.48 and 28,102.40 is: 42,147.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,850.56 : 112,260.48 = 28,102.40 : x
  2. Step 2: Convert to fraction form
    74,850.56/112,260.48 = 28,102.40/x
  3. Step 3: Cross multiply
    74,850.56x = 112,260.48 × 28,102.40
  4. Step 4: Simplify right side
    74,850.56x = 3,154,788,913.15
  5. Step 5: Solve for x
    x = 3,154,788,913.15/74,850.56
  6. Step 6: Final answer
    x = 42,147.83

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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.