Home / 86,946.31-120,043.52-66,766.98

Finding the Fourth Proportional to 86,946.31, 120,043.52 and 66,766.98

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Solution

The fourth proportional to 86,946.31, 120,043.52 and 66,766.98 is: 92,182.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,946.31 : 120,043.52 = 66,766.98 : x
  2. Step 2: Convert to fraction form
    86,946.31/120,043.52 = 66,766.98/x
  3. Step 3: Cross multiply
    86,946.31x = 120,043.52 × 66,766.98
  4. Step 4: Simplify right side
    86,946.31x = 8,014,943,665.67
  5. Step 5: Solve for x
    x = 8,014,943,665.67/86,946.31
  6. Step 6: Final answer
    x = 92,182.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.