Home / 57,985.37-86,988.99-18,531.89

Finding the Fourth Proportional to 57,985.37, 86,988.99 and 18,531.89

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Solution

The fourth proportional to 57,985.37, 86,988.99 and 18,531.89 is: 27,801.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,985.37 : 86,988.99 = 18,531.89 : x
  2. Step 2: Convert to fraction form
    57,985.37/86,988.99 = 18,531.89/x
  3. Step 3: Cross multiply
    57,985.37x = 86,988.99 × 18,531.89
  4. Step 4: Simplify right side
    57,985.37x = 1,612,070,393.89
  5. Step 5: Solve for x
    x = 1,612,070,393.89/57,985.37
  6. Step 6: Final answer
    x = 27,801.33

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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.