Home / 75,091.78-112,538.04-62,636.21

Finding the Fourth Proportional to 75,091.78, 112,538.04 and 62,636.21

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Solution

The fourth proportional to 75,091.78, 112,538.04 and 62,636.21 is: 93,871.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,091.78 : 112,538.04 = 62,636.21 : x
  2. Step 2: Convert to fraction form
    75,091.78/112,538.04 = 62,636.21/x
  3. Step 3: Cross multiply
    75,091.78x = 112,538.04 × 62,636.21
  4. Step 4: Simplify right side
    75,091.78x = 7,048,955,930.87
  5. Step 5: Solve for x
    x = 7,048,955,930.87/75,091.78
  6. Step 6: Final answer
    x = 93,871.20

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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.