Home / 53,868.96-74,334.24-39,729.60

Finding the Fourth Proportional to 53,868.96, 74,334.24 and 39,729.60

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Solution

The fourth proportional to 53,868.96, 74,334.24 and 39,729.60 is: 54,823.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,868.96 : 74,334.24 = 39,729.60 : x
  2. Step 2: Convert to fraction form
    53,868.96/74,334.24 = 39,729.60/x
  3. Step 3: Cross multiply
    53,868.96x = 74,334.24 × 39,729.60
  4. Step 4: Simplify right side
    53,868.96x = 2,953,269,621.50
  5. Step 5: Solve for x
    x = 2,953,269,621.50/53,868.96
  6. Step 6: Final answer
    x = 54,823.22

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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.