Home / 84,987-127,483.20-25,823.19

Finding the Fourth Proportional to 84,987, 127,483.20 and 25,823.19

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Solution

The fourth proportional to 84,987, 127,483.20 and 25,823.19 is: 38,735.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,987 : 127,483.20 = 25,823.19 : x
  2. Step 2: Convert to fraction form
    84,987/127,483.20 = 25,823.19/x
  3. Step 3: Cross multiply
    84,987x = 127,483.20 × 25,823.19
  4. Step 4: Simplify right side
    84,987x = 3,292,022,895.41
  5. Step 5: Solve for x
    x = 3,292,022,895.41/84,987
  6. Step 6: Final answer
    x = 38,735.61

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1.5x scale

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.