Home / 83,945.96-115,853.62-62,688.36

Finding the Fourth Proportional to 83,945.96, 115,853.62 and 62,688.36

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Solution

The fourth proportional to 83,945.96, 115,853.62 and 62,688.36 is: 86,516.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,945.96 : 115,853.62 = 62,688.36 : x
  2. Step 2: Convert to fraction form
    83,945.96/115,853.62 = 62,688.36/x
  3. Step 3: Cross multiply
    83,945.96x = 115,853.62 × 62,688.36
  4. Step 4: Simplify right side
    83,945.96x = 7,262,673,437.86
  5. Step 5: Solve for x
    x = 7,262,673,437.86/83,945.96
  6. Step 6: Final answer
    x = 86,516.06

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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.