Home / 74,929.12-103,422.72-46,618.08

Finding the Fourth Proportional to 74,929.12, 103,422.72 and 46,618.08

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Solution

The fourth proportional to 74,929.12, 103,422.72 and 46,618.08 is: 64,345.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,929.12 : 103,422.72 = 46,618.08 : x
  2. Step 2: Convert to fraction form
    74,929.12/103,422.72 = 46,618.08/x
  3. Step 3: Cross multiply
    74,929.12x = 103,422.72 × 46,618.08
  4. Step 4: Simplify right side
    74,929.12x = 4,821,368,634.78
  5. Step 5: Solve for x
    x = 4,821,368,634.78/74,929.12
  6. Step 6: Final answer
    x = 64,345.73

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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.