Home / 45,246.78-67,903.01-31,831.56

Finding the Fourth Proportional to 45,246.78, 67,903.01 and 31,831.56

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Solution

The fourth proportional to 45,246.78, 67,903.01 and 31,831.56 is: 47,770.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,246.78 : 67,903.01 = 31,831.56 : x
  2. Step 2: Convert to fraction form
    45,246.78/67,903.01 = 31,831.56/x
  3. Step 3: Cross multiply
    45,246.78x = 67,903.01 × 31,831.56
  4. Step 4: Simplify right side
    45,246.78x = 2,161,458,577.84
  5. Step 5: Solve for x
    x = 2,161,458,577.84/45,246.78
  6. Step 6: Final answer
    x = 47,770.44

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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.