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Finding the Fourth Proportional to 53,258.92, 79,888.38 and 18,198.88

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Solution

The fourth proportional to 53,258.92, 79,888.38 and 18,198.88 is: 27,298.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,258.92 : 79,888.38 = 18,198.88 : x
  2. Step 2: Convert to fraction form
    53,258.92/79,888.38 = 18,198.88/x
  3. Step 3: Cross multiply
    53,258.92x = 79,888.38 × 18,198.88
  4. Step 4: Simplify right side
    53,258.92x = 1,453,879,041.01
  5. Step 5: Solve for x
    x = 1,453,879,041.01/53,258.92
  6. Step 6: Final answer
    x = 27,298.32

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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.