Home / 57,431.03-86,146.54-17,988.28

Finding the Fourth Proportional to 57,431.03, 86,146.54 and 17,988.28

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Solution

The fourth proportional to 57,431.03, 86,146.54 and 17,988.28 is: 26,982.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,431.03 : 86,146.54 = 17,988.28 : x
  2. Step 2: Convert to fraction form
    57,431.03/86,146.54 = 17,988.28/x
  3. Step 3: Cross multiply
    57,431.03x = 86,146.54 × 17,988.28
  4. Step 4: Simplify right side
    57,431.03x = 1,549,627,822.21
  5. Step 5: Solve for x
    x = 1,549,627,822.21/57,431.03
  6. Step 6: Final answer
    x = 26,982.42

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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.