Home / 53,680.74-74,076.30-29,806.80

Finding the Fourth Proportional to 53,680.74, 74,076.30 and 29,806.80

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Solution

The fourth proportional to 53,680.74, 74,076.30 and 29,806.80 is: 41,131.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,680.74 : 74,076.30 = 29,806.80 : x
  2. Step 2: Convert to fraction form
    53,680.74/74,076.30 = 29,806.80/x
  3. Step 3: Cross multiply
    53,680.74x = 74,076.30 × 29,806.80
  4. Step 4: Simplify right side
    53,680.74x = 2,207,977,458.84
  5. Step 5: Solve for x
    x = 2,207,977,458.84/53,680.74
  6. Step 6: Final answer
    x = 41,131.65

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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.