Home / 85,028.90-127,556.85-28,874.30

Finding the Fourth Proportional to 85,028.90, 127,556.85 and 28,874.30

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Solution

The fourth proportional to 85,028.90, 127,556.85 and 28,874.30 is: 43,316.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,028.90 : 127,556.85 = 28,874.30 : x
  2. Step 2: Convert to fraction form
    85,028.90/127,556.85 = 28,874.30/x
  3. Step 3: Cross multiply
    85,028.90x = 127,556.85 × 28,874.30
  4. Step 4: Simplify right side
    85,028.90x = 3,683,114,753.96
  5. Step 5: Solve for x
    x = 3,683,114,753.96/85,028.90
  6. Step 6: Final answer
    x = 43,316.03

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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.