Home / 57,018.31-85,502.97-19,582.13

Finding the Fourth Proportional to 57,018.31, 85,502.97 and 19,582.13

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Solution

The fourth proportional to 57,018.31, 85,502.97 and 19,582.13 is: 29,364.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,018.31 : 85,502.97 = 19,582.13 : x
  2. Step 2: Convert to fraction form
    57,018.31/85,502.97 = 19,582.13/x
  3. Step 3: Cross multiply
    57,018.31x = 85,502.97 × 19,582.13
  4. Step 4: Simplify right side
    57,018.31x = 1,674,330,487.68
  5. Step 5: Solve for x
    x = 1,674,330,487.68/57,018.31
  6. Step 6: Final answer
    x = 29,364.79

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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.