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Finding the Fourth Proportional to 53,892.08, 80,838.42 and 18,807.12

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Solution

The fourth proportional to 53,892.08, 80,838.42 and 18,807.12 is: 28,210.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,892.08 : 80,838.42 = 18,807.12 : x
  2. Step 2: Convert to fraction form
    53,892.08/80,838.42 = 18,807.12/x
  3. Step 3: Cross multiply
    53,892.08x = 80,838.42 × 18,807.12
  4. Step 4: Simplify right side
    53,892.08x = 1,520,337,865.55
  5. Step 5: Solve for x
    x = 1,520,337,865.55/53,892.08
  6. Step 6: Final answer
    x = 28,210.78

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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.