Home / 79,042.12-109,081.62-45,518.92

Finding the Fourth Proportional to 79,042.12, 109,081.62 and 45,518.92

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Solution

The fourth proportional to 79,042.12, 109,081.62 and 45,518.92 is: 62,818.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,042.12 : 109,081.62 = 45,518.92 : x
  2. Step 2: Convert to fraction form
    79,042.12/109,081.62 = 45,518.92/x
  3. Step 3: Cross multiply
    79,042.12x = 109,081.62 × 45,518.92
  4. Step 4: Simplify right side
    79,042.12x = 4,965,277,534.25
  5. Step 5: Solve for x
    x = 4,965,277,534.25/79,042.12
  6. Step 6: Final answer
    x = 62,818.12

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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.