Home / 86,149.30-118,868.60-50,332.39

Finding the Fourth Proportional to 86,149.30, 118,868.60 and 50,332.39

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Solution

The fourth proportional to 86,149.30, 118,868.60 and 50,332.39 is: 69,448.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,149.30 : 118,868.60 = 50,332.39 : x
  2. Step 2: Convert to fraction form
    86,149.30/118,868.60 = 50,332.39/x
  3. Step 3: Cross multiply
    86,149.30x = 118,868.60 × 50,332.39
  4. Step 4: Simplify right side
    86,149.30x = 5,982,939,887.95
  5. Step 5: Solve for x
    x = 5,982,939,887.95/86,149.30
  6. Step 6: Final answer
    x = 69,448.51

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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.