Home / 77,979.96-107,612.22-43,988.34

Finding the Fourth Proportional to 77,979.96, 107,612.22 and 43,988.34

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Solution

The fourth proportional to 77,979.96, 107,612.22 and 43,988.34 is: 60,703.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,979.96 : 107,612.22 = 43,988.34 : x
  2. Step 2: Convert to fraction form
    77,979.96/107,612.22 = 43,988.34/x
  3. Step 3: Cross multiply
    77,979.96x = 107,612.22 × 43,988.34
  4. Step 4: Simplify right side
    77,979.96x = 4,733,682,921.51
  5. Step 5: Solve for x
    x = 4,733,682,921.51/77,979.96
  6. Step 6: Final answer
    x = 60,703.84

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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.