Home / 82,129.91-113,339.25-46,319.84

Finding the Fourth Proportional to 82,129.91, 113,339.25 and 46,319.84

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Solution

The fourth proportional to 82,129.91, 113,339.25 and 46,319.84 is: 63,921.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,129.91 : 113,339.25 = 46,319.84 : x
  2. Step 2: Convert to fraction form
    82,129.91/113,339.25 = 46,319.84/x
  3. Step 3: Cross multiply
    82,129.91x = 113,339.25 × 46,319.84
  4. Step 4: Simplify right side
    82,129.91x = 5,249,855,784.05
  5. Step 5: Solve for x
    x = 5,249,855,784.05/82,129.91
  6. Step 6: Final answer
    x = 63,921.37

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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.