Home / 74,609.16-102,975.48-42,799.56

Finding the Fourth Proportional to 74,609.16, 102,975.48 and 42,799.56

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Solution

The fourth proportional to 74,609.16, 102,975.48 and 42,799.56 is: 59,071.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,609.16 : 102,975.48 = 42,799.56 : x
  2. Step 2: Convert to fraction form
    74,609.16/102,975.48 = 42,799.56/x
  3. Step 3: Cross multiply
    74,609.16x = 102,975.48 × 42,799.56
  4. Step 4: Simplify right side
    74,609.16x = 4,407,305,234.79
  5. Step 5: Solve for x
    x = 4,407,305,234.79/74,609.16
  6. Step 6: Final answer
    x = 59,071.91

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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.