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Finding the Fourth Proportional to 53,027.60, 79,539.60 and 13,585.10

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Solution

The fourth proportional to 53,027.60, 79,539.60 and 13,585.10 is: 20,377.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,027.60 : 79,539.60 = 13,585.10 : x
  2. Step 2: Convert to fraction form
    53,027.60/79,539.60 = 13,585.10/x
  3. Step 3: Cross multiply
    53,027.60x = 79,539.60 × 13,585.10
  4. Step 4: Simplify right side
    53,027.60x = 1,080,553,419.96
  5. Step 5: Solve for x
    x = 1,080,553,419.96/53,027.60
  6. Step 6: Final answer
    x = 20,377.19

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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.