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Finding the Fourth Proportional to 53,236.80, 79,841.56 and 15,788.12

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Solution

The fourth proportional to 53,236.80, 79,841.56 and 15,788.12 is: 23,678.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,236.80 : 79,841.56 = 15,788.12 : x
  2. Step 2: Convert to fraction form
    53,236.80/79,841.56 = 15,788.12/x
  3. Step 3: Cross multiply
    53,236.80x = 79,841.56 × 15,788.12
  4. Step 4: Simplify right side
    53,236.80x = 1,260,548,130.27
  5. Step 5: Solve for x
    x = 1,260,548,130.27/53,236.80
  6. Step 6: Final answer
    x = 23,678.13

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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.