Home / 98,940.75-148,409.54-31,471.81

Finding the Fourth Proportional to 98,940.75, 148,409.54 and 31,471.81

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Solution

The fourth proportional to 98,940.75, 148,409.54 and 31,471.81 is: 47,207.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,940.75 : 148,409.54 = 31,471.81 : x
  2. Step 2: Convert to fraction form
    98,940.75/148,409.54 = 31,471.81/x
  3. Step 3: Cross multiply
    98,940.75x = 148,409.54 × 31,471.81
  4. Step 4: Simplify right side
    98,940.75x = 4,670,716,103.02
  5. Step 5: Solve for x
    x = 4,670,716,103.02/98,940.75
  6. Step 6: Final answer
    x = 47,207.20

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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.