Home / 45,820.65-68,734.62-20,861.52

Finding the Fourth Proportional to 45,820.65, 68,734.62 and 20,861.52

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Solution

The fourth proportional to 45,820.65, 68,734.62 and 20,861.52 is: 31,293.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,820.65 : 68,734.62 = 20,861.52 : x
  2. Step 2: Convert to fraction form
    45,820.65/68,734.62 = 20,861.52/x
  3. Step 3: Cross multiply
    45,820.65x = 68,734.62 × 20,861.52
  4. Step 4: Simplify right side
    45,820.65x = 1,433,908,649.82
  5. Step 5: Solve for x
    x = 1,433,908,649.82/45,820.65
  6. Step 6: Final answer
    x = 31,293.94

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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.