Home / 90,871.49-125,406.33-50,582.69

Finding the Fourth Proportional to 90,871.49, 125,406.33 and 50,582.69

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Solution

The fourth proportional to 90,871.49, 125,406.33 and 50,582.69 is: 69,806.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,871.49 : 125,406.33 = 50,582.69 : x
  2. Step 2: Convert to fraction form
    90,871.49/125,406.33 = 50,582.69/x
  3. Step 3: Cross multiply
    90,871.49x = 125,406.33 × 50,582.69
  4. Step 4: Simplify right side
    90,871.49x = 6,343,389,514.43
  5. Step 5: Solve for x
    x = 6,343,389,514.43/90,871.49
  6. Step 6: Final answer
    x = 69,806.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.