Home / 67,556.88-101,280.62-28,143.50

Finding the Fourth Proportional to 67,556.88, 101,280.62 and 28,143.50

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Solution

The fourth proportional to 67,556.88, 101,280.62 and 28,143.50 is: 42,192.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,556.88 : 101,280.62 = 28,143.50 : x
  2. Step 2: Convert to fraction form
    67,556.88/101,280.62 = 28,143.50/x
  3. Step 3: Cross multiply
    67,556.88x = 101,280.62 × 28,143.50
  4. Step 4: Simplify right side
    67,556.88x = 2,850,390,481.85
  5. Step 5: Solve for x
    x = 2,850,390,481.85/67,556.88
  6. Step 6: Final answer
    x = 42,192.45

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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.