Home / 89,831.88-134,760.12-30,651.66

Finding the Fourth Proportional to 89,831.88, 134,760.12 and 30,651.66

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Solution

The fourth proportional to 89,831.88, 134,760.12 and 30,651.66 is: 45,981.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,831.88 : 134,760.12 = 30,651.66 : x
  2. Step 2: Convert to fraction form
    89,831.88/134,760.12 = 30,651.66/x
  3. Step 3: Cross multiply
    89,831.88x = 134,760.12 × 30,651.66
  4. Step 4: Simplify right side
    89,831.88x = 4,130,621,379.80
  5. Step 5: Solve for x
    x = 4,130,621,379.80/89,831.88
  6. Step 6: Final answer
    x = 45,981.69

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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.