Home / 48,556.80-72,835.20-18,975.60

Finding the Fourth Proportional to 48,556.80, 72,835.20 and 18,975.60

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Solution

The fourth proportional to 48,556.80, 72,835.20 and 18,975.60 is: 28,463.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,556.80 : 72,835.20 = 18,975.60 : x
  2. Step 2: Convert to fraction form
    48,556.80/72,835.20 = 18,975.60/x
  3. Step 3: Cross multiply
    48,556.80x = 72,835.20 × 18,975.60
  4. Step 4: Simplify right side
    48,556.80x = 1,382,091,621.12
  5. Step 5: Solve for x
    x = 1,382,091,621.12/48,556.80
  6. Step 6: Final answer
    x = 28,463.40

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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.