Home / 80,890.98-111,629.64-45,080.18

Finding the Fourth Proportional to 80,890.98, 111,629.64 and 45,080.18

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Solution

The fourth proportional to 80,890.98, 111,629.64 and 45,080.18 is: 62,210.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,890.98 : 111,629.64 = 45,080.18 : x
  2. Step 2: Convert to fraction form
    80,890.98/111,629.64 = 45,080.18/x
  3. Step 3: Cross multiply
    80,890.98x = 111,629.64 × 45,080.18
  4. Step 4: Simplify right side
    80,890.98x = 5,032,284,264.54
  5. Step 5: Solve for x
    x = 5,032,284,264.54/80,890.98
  6. Step 6: Final answer
    x = 62,210.70

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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.