Home / 85,834.14-128,786.64-46,344.75

Finding the Fourth Proportional to 85,834.14, 128,786.64 and 46,344.75

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Solution

The fourth proportional to 85,834.14, 128,786.64 and 46,344.75 is: 69,536.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,834.14 : 128,786.64 = 46,344.75 : x
  2. Step 2: Convert to fraction form
    85,834.14/128,786.64 = 46,344.75/x
  3. Step 3: Cross multiply
    85,834.14x = 128,786.64 × 46,344.75
  4. Step 4: Simplify right side
    85,834.14x = 5,968,584,634.14
  5. Step 5: Solve for x
    x = 5,968,584,634.14/85,834.14
  6. Step 6: Final answer
    x = 69,536.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.