Home / 86,943.60-130,573.80-51,951.60

Finding the Fourth Proportional to 86,943.60, 130,573.80 and 51,951.60

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Solution

The fourth proportional to 86,943.60, 130,573.80 and 51,951.60 is: 78,022.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,943.60 : 130,573.80 = 51,951.60 : x
  2. Step 2: Convert to fraction form
    86,943.60/130,573.80 = 51,951.60/x
  3. Step 3: Cross multiply
    86,943.60x = 130,573.80 × 51,951.60
  4. Step 4: Simplify right side
    86,943.60x = 6,783,517,828.08
  5. Step 5: Solve for x
    x = 6,783,517,828.08/86,943.60
  6. Step 6: Final answer
    x = 78,022.05

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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.