Home / 81,675.21-122,486.88-26,258.25

Finding the Fourth Proportional to 81,675.21, 122,486.88 and 26,258.25

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Solution

The fourth proportional to 81,675.21, 122,486.88 and 26,258.25 is: 39,379.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,675.21 : 122,486.88 = 26,258.25 : x
  2. Step 2: Convert to fraction form
    81,675.21/122,486.88 = 26,258.25/x
  3. Step 3: Cross multiply
    81,675.21x = 122,486.88 × 26,258.25
  4. Step 4: Simplify right side
    81,675.21x = 3,216,291,116.76
  5. Step 5: Solve for x
    x = 3,216,291,116.76/81,675.21
  6. Step 6: Final answer
    x = 39,379.04

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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.