Home / 45,188.80-67,777.41-11,911.48

Finding the Fourth Proportional to 45,188.80, 67,777.41 and 11,911.48

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Solution

The fourth proportional to 45,188.80, 67,777.41 and 11,911.48 is: 17,865.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,188.80 : 67,777.41 = 11,911.48 : x
  2. Step 2: Convert to fraction form
    45,188.80/67,777.41 = 11,911.48/x
  3. Step 3: Cross multiply
    45,188.80x = 67,777.41 × 11,911.48
  4. Step 4: Simplify right side
    45,188.80x = 807,329,263.67
  5. Step 5: Solve for x
    x = 807,329,263.67/45,188.80
  6. Step 6: Final answer
    x = 17,865.69

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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.