Home / 86,709.44-129,928.08-51,629.96

Finding the Fourth Proportional to 86,709.44, 129,928.08 and 51,629.96

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Solution

The fourth proportional to 86,709.44, 129,928.08 and 51,629.96 is: 77,363.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,709.44 : 129,928.08 = 51,629.96 : x
  2. Step 2: Convert to fraction form
    86,709.44/129,928.08 = 51,629.96/x
  3. Step 3: Cross multiply
    86,709.44x = 129,928.08 × 51,629.96
  4. Step 4: Simplify right side
    86,709.44x = 6,708,181,573.28
  5. Step 5: Solve for x
    x = 6,708,181,573.28/86,709.44
  6. Step 6: Final answer
    x = 77,363.91

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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.