Home / 53,109.01-79,637.59-18,903.39

Finding the Fourth Proportional to 53,109.01, 79,637.59 and 18,903.39

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Solution

The fourth proportional to 53,109.01, 79,637.59 and 18,903.39 is: 28,345.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,109.01 : 79,637.59 = 18,903.39 : x
  2. Step 2: Convert to fraction form
    53,109.01/79,637.59 = 18,903.39/x
  3. Step 3: Cross multiply
    53,109.01x = 79,637.59 × 18,903.39
  4. Step 4: Simplify right side
    53,109.01x = 1,505,420,422.43
  5. Step 5: Solve for x
    x = 1,505,420,422.43/53,109.01
  6. Step 6: Final answer
    x = 28,345.86

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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.