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Finding the Fourth Proportional to 79,988, 110,383.44 and 46,456.16

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Solution

The fourth proportional to 79,988, 110,383.44 and 46,456.16 is: 64,109.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,988 : 110,383.44 = 46,456.16 : x
  2. Step 2: Convert to fraction form
    79,988/110,383.44 = 46,456.16/x
  3. Step 3: Cross multiply
    79,988x = 110,383.44 × 46,456.16
  4. Step 4: Simplify right side
    79,988x = 5,127,990,749.99
  5. Step 5: Solve for x
    x = 5,127,990,749.99/79,988
  6. Step 6: Final answer
    x = 64,109.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.