Home / 86,209.15-118,945.38-50,407.96

Finding the Fourth Proportional to 86,209.15, 118,945.38 and 50,407.96

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Solution

The fourth proportional to 86,209.15, 118,945.38 and 50,407.96 is: 69,549.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,209.15 : 118,945.38 = 50,407.96 : x
  2. Step 2: Convert to fraction form
    86,209.15/118,945.38 = 50,407.96/x
  3. Step 3: Cross multiply
    86,209.15x = 118,945.38 × 50,407.96
  4. Step 4: Simplify right side
    86,209.15x = 5,995,793,957.22
  5. Step 5: Solve for x
    x = 5,995,793,957.22/86,209.15
  6. Step 6: Final answer
    x = 69,549.39

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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.