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Finding the Fourth Proportional to 53,416, 80,125.08 and 16,480

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Solution

The fourth proportional to 53,416, 80,125.08 and 16,480 is: 24,720.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,416 : 80,125.08 = 16,480 : x
  2. Step 2: Convert to fraction form
    53,416/80,125.08 = 16,480/x
  3. Step 3: Cross multiply
    53,416x = 80,125.08 × 16,480
  4. Step 4: Simplify right side
    53,416x = 1,320,461,318.40
  5. Step 5: Solve for x
    x = 1,320,461,318.40/53,416
  6. Step 6: Final answer
    x = 24,720.33

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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.