Home / 45,247.02-67,903.38-31,831.80

Finding the Fourth Proportional to 45,247.02, 67,903.38 and 31,831.80

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Solution

The fourth proportional to 45,247.02, 67,903.38 and 31,831.80 is: 47,770.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,247.02 : 67,903.38 = 31,831.80 : x
  2. Step 2: Convert to fraction form
    45,247.02/67,903.38 = 31,831.80/x
  3. Step 3: Cross multiply
    45,247.02x = 67,903.38 × 31,831.80
  4. Step 4: Simplify right side
    45,247.02x = 2,161,486,811.48
  5. Step 5: Solve for x
    x = 2,161,486,811.48/45,247.02
  6. Step 6: Final answer
    x = 47,770.81

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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.