Home / 45,009.55-67,494.87-18,696.31

Finding the Fourth Proportional to 45,009.55, 67,494.87 and 18,696.31

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Solution

The fourth proportional to 45,009.55, 67,494.87 and 18,696.31 is: 28,036.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,009.55 : 67,494.87 = 18,696.31 : x
  2. Step 2: Convert to fraction form
    45,009.55/67,494.87 = 18,696.31/x
  3. Step 3: Cross multiply
    45,009.55x = 67,494.87 × 18,696.31
  4. Step 4: Simplify right side
    45,009.55x = 1,261,905,012.93
  5. Step 5: Solve for x
    x = 1,261,905,012.93/45,009.55
  6. Step 6: Final answer
    x = 28,036.38

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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.