Home / 86,899.75-130,374.23-51,392.59

Finding the Fourth Proportional to 86,899.75, 130,374.23 and 51,392.59

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Solution

The fourth proportional to 86,899.75, 130,374.23 and 51,392.59 is: 77,103.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,899.75 : 130,374.23 = 51,392.59 : x
  2. Step 2: Convert to fraction form
    86,899.75/130,374.23 = 51,392.59/x
  3. Step 3: Cross multiply
    86,899.75x = 130,374.23 × 51,392.59
  4. Step 4: Simplify right side
    86,899.75x = 6,700,268,766.06
  5. Step 5: Solve for x
    x = 6,700,268,766.06/86,899.75
  6. Step 6: Final answer
    x = 77,103.43

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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.