Home / 53,911.36-74,391.76-31,250.80

Finding the Fourth Proportional to 53,911.36, 74,391.76 and 31,250.80

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Solution

The fourth proportional to 53,911.36, 74,391.76 and 31,250.80 is: 43,122.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,911.36 : 74,391.76 = 31,250.80 : x
  2. Step 2: Convert to fraction form
    53,911.36/74,391.76 = 31,250.80/x
  3. Step 3: Cross multiply
    53,911.36x = 74,391.76 × 31,250.80
  4. Step 4: Simplify right side
    53,911.36x = 2,324,802,013.41
  5. Step 5: Solve for x
    x = 2,324,802,013.41/53,911.36
  6. Step 6: Final answer
    x = 43,122.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.