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Finding the Fourth Proportional to 79,692.31, 109,975.79 and 45,702.08

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Solution

The fourth proportional to 79,692.31, 109,975.79 and 45,702.08 is: 63,069.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,692.31 : 109,975.79 = 45,702.08 : x
  2. Step 2: Convert to fraction form
    79,692.31/109,975.79 = 45,702.08/x
  3. Step 3: Cross multiply
    79,692.31x = 109,975.79 × 45,702.08
  4. Step 4: Simplify right side
    79,692.31x = 5,026,122,352.64
  5. Step 5: Solve for x
    x = 5,026,122,352.64/79,692.31
  6. Step 6: Final answer
    x = 63,069.10

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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.