Home / 45,752.78-68,539.79-31,518.75

Finding the Fourth Proportional to 45,752.78, 68,539.79 and 31,518.75

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Solution

The fourth proportional to 45,752.78, 68,539.79 and 31,518.75 is: 47,216.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,752.78 : 68,539.79 = 31,518.75 : x
  2. Step 2: Convert to fraction form
    45,752.78/68,539.79 = 31,518.75/x
  3. Step 3: Cross multiply
    45,752.78x = 68,539.79 × 31,518.75
  4. Step 4: Simplify right side
    45,752.78x = 2,160,288,252.50
  5. Step 5: Solve for x
    x = 2,160,288,252.50/45,752.78
  6. Step 6: Final answer
    x = 47,216.54

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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.