Home / 53,955.64-80,969.82-18,895.60

Finding the Fourth Proportional to 53,955.64, 80,969.82 and 18,895.60

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Solution

The fourth proportional to 53,955.64, 80,969.82 and 18,895.60 is: 28,356.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,955.64 : 80,969.82 = 18,895.60 : x
  2. Step 2: Convert to fraction form
    53,955.64/80,969.82 = 18,895.60/x
  3. Step 3: Cross multiply
    53,955.64x = 80,969.82 × 18,895.60
  4. Step 4: Simplify right side
    53,955.64x = 1,529,973,330.79
  5. Step 5: Solve for x
    x = 1,529,973,330.79/53,955.64
  6. Step 6: Final answer
    x = 28,356.13

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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.