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Finding the Fourth Proportional to 79,185.36, 109,269.87 and 45,192.90

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Solution

The fourth proportional to 79,185.36, 109,269.87 and 45,192.90 is: 62,362.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,185.36 : 109,269.87 = 45,192.90 : x
  2. Step 2: Convert to fraction form
    79,185.36/109,269.87 = 45,192.90/x
  3. Step 3: Cross multiply
    79,185.36x = 109,269.87 × 45,192.90
  4. Step 4: Simplify right side
    79,185.36x = 4,938,222,307.92
  5. Step 5: Solve for x
    x = 4,938,222,307.92/79,185.36
  6. Step 6: Final answer
    x = 62,362.82

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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.