Home / 124,021.23-186,032.85-39,781.51

Finding the Fourth Proportional to 124,021.23, 186,032.85 and 39,781.51

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Solution

The fourth proportional to 124,021.23, 186,032.85 and 39,781.51 is: 59,672.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,021.23 : 186,032.85 = 39,781.51 : x
  2. Step 2: Convert to fraction form
    124,021.23/186,032.85 = 39,781.51/x
  3. Step 3: Cross multiply
    124,021.23x = 186,032.85 × 39,781.51
  4. Step 4: Simplify right side
    124,021.23x = 7,400,668,338.55
  5. Step 5: Solve for x
    x = 7,400,668,338.55/124,021.23
  6. Step 6: Final answer
    x = 59,672.59

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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.