Home / 45,111.12-67,670.67-11,831.07

Finding the Fourth Proportional to 45,111.12, 67,670.67 and 11,831.07

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Solution

The fourth proportional to 45,111.12, 67,670.67 and 11,831.07 is: 17,747.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,111.12 : 67,670.67 = 11,831.07 : x
  2. Step 2: Convert to fraction form
    45,111.12/67,670.67 = 11,831.07/x
  3. Step 3: Cross multiply
    45,111.12x = 67,670.67 × 11,831.07
  4. Step 4: Simplify right side
    45,111.12x = 800,616,433.72
  5. Step 5: Solve for x
    x = 800,616,433.72/45,111.12
  6. Step 6: Final answer
    x = 17,747.65

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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.