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Finding the Fourth Proportional to 80,109.90, 110,554.02 and 43,813.50

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Solution

The fourth proportional to 80,109.90, 110,554.02 and 43,813.50 is: 60,463.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,109.90 : 110,554.02 = 43,813.50 : x
  2. Step 2: Convert to fraction form
    80,109.90/110,554.02 = 43,813.50/x
  3. Step 3: Cross multiply
    80,109.90x = 110,554.02 × 43,813.50
  4. Step 4: Simplify right side
    80,109.90x = 4,843,758,555.27
  5. Step 5: Solve for x
    x = 4,843,758,555.27/80,109.90
  6. Step 6: Final answer
    x = 60,463.92

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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.