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Finding the Fourth Proportional to 79,708.97, 109,994.83 and 45,693.07

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Solution

The fourth proportional to 79,708.97, 109,994.83 and 45,693.07 is: 63,054.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,708.97 : 109,994.83 = 45,693.07 : x
  2. Step 2: Convert to fraction form
    79,708.97/109,994.83 = 45,693.07/x
  3. Step 3: Cross multiply
    79,708.97x = 109,994.83 × 45,693.07
  4. Step 4: Simplify right side
    79,708.97x = 5,026,001,020.49
  5. Step 5: Solve for x
    x = 5,026,001,020.49/79,708.97
  6. Step 6: Final answer
    x = 63,054.40

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1.5x scale

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.