Home / 57,430.35-86,137.90-21,882.08

Finding the Fourth Proportional to 57,430.35, 86,137.90 and 21,882.08

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Solution

The fourth proportional to 57,430.35, 86,137.90 and 21,882.08 is: 32,820.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,430.35 : 86,137.90 = 21,882.08 : x
  2. Step 2: Convert to fraction form
    57,430.35/86,137.90 = 21,882.08/x
  3. Step 3: Cross multiply
    57,430.35x = 86,137.90 × 21,882.08
  4. Step 4: Simplify right side
    57,430.35x = 1,884,876,579.47
  5. Step 5: Solve for x
    x = 1,884,876,579.47/57,430.35
  6. Step 6: Final answer
    x = 32,820.22

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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.