Home / 86,037.26-118,830.77-57,309.60

Finding the Fourth Proportional to 86,037.26, 118,830.77 and 57,309.60

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Solution

The fourth proportional to 86,037.26, 118,830.77 and 57,309.60 is: 79,153.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,037.26 : 118,830.77 = 57,309.60 : x
  2. Step 2: Convert to fraction form
    86,037.26/118,830.77 = 57,309.60/x
  3. Step 3: Cross multiply
    86,037.26x = 118,830.77 × 57,309.60
  4. Step 4: Simplify right side
    86,037.26x = 6,810,143,896.39
  5. Step 5: Solve for x
    x = 6,810,143,896.39/86,037.26
  6. Step 6: Final answer
    x = 79,153.43

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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.