Home / 55,307.54-76,324.43-31,433.60

Finding the Fourth Proportional to 55,307.54, 76,324.43 and 31,433.60

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Solution

The fourth proportional to 55,307.54, 76,324.43 and 31,433.60 is: 43,378.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,307.54 : 76,324.43 = 31,433.60 : x
  2. Step 2: Convert to fraction form
    55,307.54/76,324.43 = 31,433.60/x
  3. Step 3: Cross multiply
    55,307.54x = 76,324.43 × 31,433.60
  4. Step 4: Simplify right side
    55,307.54x = 2,399,151,602.85
  5. Step 5: Solve for x
    x = 2,399,151,602.85/55,307.54
  6. Step 6: Final answer
    x = 43,378.38

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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.