Home / 82,979.20-124,370.40-47,846.32

Finding the Fourth Proportional to 82,979.20, 124,370.40 and 47,846.32

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Solution

The fourth proportional to 82,979.20, 124,370.40 and 47,846.32 is: 71,712.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,979.20 : 124,370.40 = 47,846.32 : x
  2. Step 2: Convert to fraction form
    82,979.20/124,370.40 = 47,846.32/x
  3. Step 3: Cross multiply
    82,979.20x = 124,370.40 × 47,846.32
  4. Step 4: Simplify right side
    82,979.20x = 5,950,665,956.93
  5. Step 5: Solve for x
    x = 5,950,665,956.93/82,979.20
  6. Step 6: Final answer
    x = 71,712.74

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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.