Home / 84,467.22-126,729.81-31,891.74

Finding the Fourth Proportional to 84,467.22, 126,729.81 and 31,891.74

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Solution

The fourth proportional to 84,467.22, 126,729.81 and 31,891.74 is: 47,848.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,467.22 : 126,729.81 = 31,891.74 : x
  2. Step 2: Convert to fraction form
    84,467.22/126,729.81 = 31,891.74/x
  3. Step 3: Cross multiply
    84,467.22x = 126,729.81 × 31,891.74
  4. Step 4: Simplify right side
    84,467.22x = 4,041,634,150.77
  5. Step 5: Solve for x
    x = 4,041,634,150.77/84,467.22
  6. Step 6: Final answer
    x = 47,848.55

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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.