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Finding the Fourth Proportional to 45,092.79, 67,642.16 and 11,813.67

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Solution

The fourth proportional to 45,092.79, 67,642.16 and 11,813.67 is: 17,721.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,092.79 : 67,642.16 = 11,813.67 : x
  2. Step 2: Convert to fraction form
    45,092.79/67,642.16 = 11,813.67/x
  3. Step 3: Cross multiply
    45,092.79x = 67,642.16 × 11,813.67
  4. Step 4: Simplify right side
    45,092.79x = 799,102,097.26
  5. Step 5: Solve for x
    x = 799,102,097.26/45,092.79
  6. Step 6: Final answer
    x = 17,721.28

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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.