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Finding the Fourth Proportional to 60,021.72, 90,016.74 and 17,890.44

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Solution

The fourth proportional to 60,021.72, 90,016.74 and 17,890.44 is: 26,830.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,021.72 : 90,016.74 = 17,890.44 : x
  2. Step 2: Convert to fraction form
    60,021.72/90,016.74 = 17,890.44/x
  3. Step 3: Cross multiply
    60,021.72x = 90,016.74 × 17,890.44
  4. Step 4: Simplify right side
    60,021.72x = 1,610,439,085.97
  5. Step 5: Solve for x
    x = 1,610,439,085.97/60,021.72
  6. Step 6: Final answer
    x = 26,830.94

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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.