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Finding the Fourth Proportional to 80,804.80, 111,526.20 and 48,991.12

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Solution

The fourth proportional to 80,804.80, 111,526.20 and 48,991.12 is: 67,617.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,804.80 : 111,526.20 = 48,991.12 : x
  2. Step 2: Convert to fraction form
    80,804.80/111,526.20 = 48,991.12/x
  3. Step 3: Cross multiply
    80,804.80x = 111,526.20 × 48,991.12
  4. Step 4: Simplify right side
    80,804.80x = 5,463,793,447.34
  5. Step 5: Solve for x
    x = 5,463,793,447.34/80,804.80
  6. Step 6: Final answer
    x = 67,617.19

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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.