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Finding the Fourth Proportional to 79,203, 109,273.23 and 45,187.05

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Solution

The fourth proportional to 79,203, 109,273.23 and 45,187.05 is: 62,342.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,203 : 109,273.23 = 45,187.05 : x
  2. Step 2: Convert to fraction form
    79,203/109,273.23 = 45,187.05/x
  3. Step 3: Cross multiply
    79,203x = 109,273.23 × 45,187.05
  4. Step 4: Simplify right side
    79,203x = 4,937,734,907.67
  5. Step 5: Solve for x
    x = 4,937,734,907.67/79,203
  6. Step 6: Final answer
    x = 62,342.78

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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.