Home / 57,985.12-86,990.07-18,003.22

Finding the Fourth Proportional to 57,985.12, 86,990.07 and 18,003.22

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Solution

The fourth proportional to 57,985.12, 86,990.07 and 18,003.22 is: 27,008.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,985.12 : 86,990.07 = 18,003.22 : x
  2. Step 2: Convert to fraction form
    57,985.12/86,990.07 = 18,003.22/x
  3. Step 3: Cross multiply
    57,985.12x = 86,990.07 × 18,003.22
  4. Step 4: Simplify right side
    57,985.12x = 1,566,101,368.03
  5. Step 5: Solve for x
    x = 1,566,101,368.03/57,985.12
  6. Step 6: Final answer
    x = 27,008.68

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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.