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Finding the Fourth Proportional to 53,712.64, 80,569.03 and 18,627.63

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Solution

The fourth proportional to 53,712.64, 80,569.03 and 18,627.63 is: 27,941.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,712.64 : 80,569.03 = 18,627.63 : x
  2. Step 2: Convert to fraction form
    53,712.64/80,569.03 = 18,627.63/x
  3. Step 3: Cross multiply
    53,712.64x = 80,569.03 × 18,627.63
  4. Step 4: Simplify right side
    53,712.64x = 1,500,810,080.30
  5. Step 5: Solve for x
    x = 1,500,810,080.30/53,712.64
  6. Step 6: Final answer
    x = 27,941.47

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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.