Home / 57,421.29-86,131.94-17,981.48

Finding the Fourth Proportional to 57,421.29, 86,131.94 and 17,981.48

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Solution

The fourth proportional to 57,421.29, 86,131.94 and 17,981.48 is: 26,972.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,421.29 : 86,131.94 = 17,981.48 : x
  2. Step 2: Convert to fraction form
    57,421.29/86,131.94 = 17,981.48/x
  3. Step 3: Cross multiply
    57,421.29x = 86,131.94 × 17,981.48
  4. Step 4: Simplify right side
    57,421.29x = 1,548,779,451.23
  5. Step 5: Solve for x
    x = 1,548,779,451.23/57,421.29
  6. Step 6: Final answer
    x = 26,972.22

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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.