Home / 74,295.12-102,450.20-63,575.48

Finding the Fourth Proportional to 74,295.12, 102,450.20 and 63,575.48

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Solution

The fourth proportional to 74,295.12, 102,450.20 and 63,575.48 is: 87,668.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,295.12 : 102,450.20 = 63,575.48 : x
  2. Step 2: Convert to fraction form
    74,295.12/102,450.20 = 63,575.48/x
  3. Step 3: Cross multiply
    74,295.12x = 102,450.20 × 63,575.48
  4. Step 4: Simplify right side
    74,295.12x = 6,513,321,205.17
  5. Step 5: Solve for x
    x = 6,513,321,205.17/74,295.12
  6. Step 6: Final answer
    x = 87,668.22

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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.