Home / 48,081.41-72,122.12-13,021.08

Finding the Fourth Proportional to 48,081.41, 72,122.12 and 13,021.08

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Solution

The fourth proportional to 48,081.41, 72,122.12 and 13,021.08 is: 19,531.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,081.41 : 72,122.12 = 13,021.08 : x
  2. Step 2: Convert to fraction form
    48,081.41/72,122.12 = 13,021.08/x
  3. Step 3: Cross multiply
    48,081.41x = 72,122.12 × 13,021.08
  4. Step 4: Simplify right side
    48,081.41x = 939,107,894.29
  5. Step 5: Solve for x
    x = 939,107,894.29/48,081.41
  6. Step 6: Final answer
    x = 19,531.62

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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.