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Finding the Fourth Proportional to 79,907.19, 110,210.89 and 49,693.78

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Solution

The fourth proportional to 79,907.19, 110,210.89 and 49,693.78 is: 68,539.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,907.19 : 110,210.89 = 49,693.78 : x
  2. Step 2: Convert to fraction form
    79,907.19/110,210.89 = 49,693.78/x
  3. Step 3: Cross multiply
    79,907.19x = 110,210.89 × 49,693.78
  4. Step 4: Simplify right side
    79,907.19x = 5,476,795,721.26
  5. Step 5: Solve for x
    x = 5,476,795,721.26/79,907.19
  6. Step 6: Final answer
    x = 68,539.46

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1.5x scale

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.