Home / 56,445.38-84,615.09-18,979.25

Finding the Fourth Proportional to 56,445.38, 84,615.09 and 18,979.25

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Solution

The fourth proportional to 56,445.38, 84,615.09 and 18,979.25 is: 28,451.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,445.38 : 84,615.09 = 18,979.25 : x
  2. Step 2: Convert to fraction form
    56,445.38/84,615.09 = 18,979.25/x
  3. Step 3: Cross multiply
    56,445.38x = 84,615.09 × 18,979.25
  4. Step 4: Simplify right side
    56,445.38x = 1,605,930,946.88
  5. Step 5: Solve for x
    x = 1,605,930,946.88/56,445.38
  6. Step 6: Final answer
    x = 28,451.06

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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.