Home / 45,392.32-68,088.48-12,112.51

Finding the Fourth Proportional to 45,392.32, 68,088.48 and 12,112.51

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Solution

The fourth proportional to 45,392.32, 68,088.48 and 12,112.51 is: 18,168.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,392.32 : 68,088.48 = 12,112.51 : x
  2. Step 2: Convert to fraction form
    45,392.32/68,088.48 = 12,112.51/x
  3. Step 3: Cross multiply
    45,392.32x = 68,088.48 × 12,112.51
  4. Step 4: Simplify right side
    45,392.32x = 824,722,054.44
  5. Step 5: Solve for x
    x = 824,722,054.44/45,392.32
  6. Step 6: Final answer
    x = 18,168.76

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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.