Home / 45,128.34-67,676.31-15,538.23

Finding the Fourth Proportional to 45,128.34, 67,676.31 and 15,538.23

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Solution

The fourth proportional to 45,128.34, 67,676.31 and 15,538.23 is: 23,301.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,128.34 : 67,676.31 = 15,538.23 : x
  2. Step 2: Convert to fraction form
    45,128.34/67,676.31 = 15,538.23/x
  3. Step 3: Cross multiply
    45,128.34x = 67,676.31 × 15,538.23
  4. Step 4: Simplify right side
    45,128.34x = 1,051,570,070.33
  5. Step 5: Solve for x
    x = 1,051,570,070.33/45,128.34
  6. Step 6: Final answer
    x = 23,301.77

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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.