Home / 86,947.83-130,403.87-54,917.14

Finding the Fourth Proportional to 86,947.83, 130,403.87 and 54,917.14

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Solution

The fourth proportional to 86,947.83, 130,403.87 and 54,917.14 is: 82,364.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,947.83 : 130,403.87 = 54,917.14 : x
  2. Step 2: Convert to fraction form
    86,947.83/130,403.87 = 54,917.14/x
  3. Step 3: Cross multiply
    86,947.83x = 130,403.87 × 54,917.14
  4. Step 4: Simplify right side
    86,947.83x = 7,161,407,744.09
  5. Step 5: Solve for x
    x = 7,161,407,744.09/86,947.83
  6. Step 6: Final answer
    x = 82,364.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.