Home / 83,945.57-115,999.29-61,246.13

Finding the Fourth Proportional to 83,945.57, 115,999.29 and 61,246.13

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Solution

The fourth proportional to 83,945.57, 115,999.29 and 61,246.13 is: 84,632.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,945.57 : 115,999.29 = 61,246.13 : x
  2. Step 2: Convert to fraction form
    83,945.57/115,999.29 = 61,246.13/x
  3. Step 3: Cross multiply
    83,945.57x = 115,999.29 × 61,246.13
  4. Step 4: Simplify right side
    83,945.57x = 7,104,507,015.25
  5. Step 5: Solve for x
    x = 7,104,507,015.25/83,945.57
  6. Step 6: Final answer
    x = 84,632.31

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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.