Home / 53,756.64-80,636.76-18,696.60

Finding the Fourth Proportional to 53,756.64, 80,636.76 and 18,696.60

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Solution

The fourth proportional to 53,756.64, 80,636.76 and 18,696.60 is: 28,045.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,756.64 : 80,636.76 = 18,696.60 : x
  2. Step 2: Convert to fraction form
    53,756.64/80,636.76 = 18,696.60/x
  3. Step 3: Cross multiply
    53,756.64x = 80,636.76 × 18,696.60
  4. Step 4: Simplify right side
    53,756.64x = 1,507,633,247.02
  5. Step 5: Solve for x
    x = 1,507,633,247.02/53,756.64
  6. Step 6: Final answer
    x = 28,045.53

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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.