Home / 86,824.38-130,068.05-63,986.75

Finding the Fourth Proportional to 86,824.38, 130,068.05 and 63,986.75

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Solution

The fourth proportional to 86,824.38, 130,068.05 and 63,986.75 is: 95,855.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,824.38 : 130,068.05 = 63,986.75 : x
  2. Step 2: Convert to fraction form
    86,824.38/130,068.05 = 63,986.75/x
  3. Step 3: Cross multiply
    86,824.38x = 130,068.05 × 63,986.75
  4. Step 4: Simplify right side
    86,824.38x = 8,322,631,798.34
  5. Step 5: Solve for x
    x = 8,322,631,798.34/86,824.38
  6. Step 6: Final answer
    x = 95,855.93

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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.