Home / 45,735.90-68,574.57-20,749.98

Finding the Fourth Proportional to 45,735.90, 68,574.57 and 20,749.98

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Solution

The fourth proportional to 45,735.90, 68,574.57 and 20,749.98 is: 31,111.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,735.90 : 68,574.57 = 20,749.98 : x
  2. Step 2: Convert to fraction form
    45,735.90/68,574.57 = 20,749.98/x
  3. Step 3: Cross multiply
    45,735.90x = 68,574.57 × 20,749.98
  4. Step 4: Simplify right side
    45,735.90x = 1,422,920,956.01
  5. Step 5: Solve for x
    x = 1,422,920,956.01/45,735.90
  6. Step 6: Final answer
    x = 31,111.69

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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.