Home / 48,000.75-72,011.36-18,418.33

Finding the Fourth Proportional to 48,000.75, 72,011.36 and 18,418.33

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Solution

The fourth proportional to 48,000.75, 72,011.36 and 18,418.33 is: 27,631.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,000.75 : 72,011.36 = 18,418.33 : x
  2. Step 2: Convert to fraction form
    48,000.75/72,011.36 = 18,418.33/x
  3. Step 3: Cross multiply
    48,000.75x = 72,011.36 × 18,418.33
  4. Step 4: Simplify right side
    48,000.75x = 1,326,328,992.23
  5. Step 5: Solve for x
    x = 1,326,328,992.23/48,000.75
  6. Step 6: Final answer
    x = 27,631.42

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1.5x scale

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.