Home / 86,939.46-130,525.83-51,466.32

Finding the Fourth Proportional to 86,939.46, 130,525.83 and 51,466.32

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Solution

The fourth proportional to 86,939.46, 130,525.83 and 51,466.32 is: 77,268.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,939.46 : 130,525.83 = 51,466.32 : x
  2. Step 2: Convert to fraction form
    86,939.46/130,525.83 = 51,466.32/x
  3. Step 3: Cross multiply
    86,939.46x = 130,525.83 × 51,466.32
  4. Step 4: Simplify right side
    86,939.46x = 6,717,684,135.05
  5. Step 5: Solve for x
    x = 6,717,684,135.05/86,939.46
  6. Step 6: Final answer
    x = 77,268.53

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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.