Home / 82,129.63-113,338.60-46,319.43

Finding the Fourth Proportional to 82,129.63, 113,338.60 and 46,319.43

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Solution

The fourth proportional to 82,129.63, 113,338.60 and 46,319.43 is: 63,920.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,129.63 : 113,338.60 = 46,319.43 : x
  2. Step 2: Convert to fraction form
    82,129.63/113,338.60 = 46,319.43/x
  3. Step 3: Cross multiply
    82,129.63x = 113,338.60 × 46,319.43
  4. Step 4: Simplify right side
    82,129.63x = 5,249,779,349.00
  5. Step 5: Solve for x
    x = 5,249,779,349.00/82,129.63
  6. Step 6: Final answer
    x = 63,920.65

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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.