Home / 80,686.33-111,345.14-46,690.09

Finding the Fourth Proportional to 80,686.33, 111,345.14 and 46,690.09

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Solution

The fourth proportional to 80,686.33, 111,345.14 and 46,690.09 is: 64,431.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,686.33 : 111,345.14 = 46,690.09 : x
  2. Step 2: Convert to fraction form
    80,686.33/111,345.14 = 46,690.09/x
  3. Step 3: Cross multiply
    80,686.33x = 111,345.14 × 46,690.09
  4. Step 4: Simplify right side
    80,686.33x = 5,198,714,446.02
  5. Step 5: Solve for x
    x = 5,198,714,446.02/80,686.33
  6. Step 6: Final answer
    x = 64,431.17

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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.