Home / 53,255.89-79,885.86-17,720.38

Finding the Fourth Proportional to 53,255.89, 79,885.86 and 17,720.38

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Solution

The fourth proportional to 53,255.89, 79,885.86 and 17,720.38 is: 26,581.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,255.89 : 79,885.86 = 17,720.38 : x
  2. Step 2: Convert to fraction form
    53,255.89/79,885.86 = 17,720.38/x
  3. Step 3: Cross multiply
    53,255.89x = 79,885.86 × 17,720.38
  4. Step 4: Simplify right side
    53,255.89x = 1,415,607,795.83
  5. Step 5: Solve for x
    x = 1,415,607,795.83/53,255.89
  6. Step 6: Final answer
    x = 26,581.24

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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.