Home / 82,115.07-113,336.94-53,384.72

Finding the Fourth Proportional to 82,115.07, 113,336.94 and 53,384.72

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Solution

The fourth proportional to 82,115.07, 113,336.94 and 53,384.72 is: 73,682.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,115.07 : 113,336.94 = 53,384.72 : x
  2. Step 2: Convert to fraction form
    82,115.07/113,336.94 = 53,384.72/x
  3. Step 3: Cross multiply
    82,115.07x = 113,336.94 × 53,384.72
  4. Step 4: Simplify right side
    82,115.07x = 6,050,460,540.63
  5. Step 5: Solve for x
    x = 6,050,460,540.63/82,115.07
  6. Step 6: Final answer
    x = 73,682.71

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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.