Home / 74,775.51-103,164.36-47,932.83

Finding the Fourth Proportional to 74,775.51, 103,164.36 and 47,932.83

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Solution

The fourth proportional to 74,775.51, 103,164.36 and 47,932.83 is: 66,130.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,775.51 : 103,164.36 = 47,932.83 : x
  2. Step 2: Convert to fraction form
    74,775.51/103,164.36 = 47,932.83/x
  3. Step 3: Cross multiply
    74,775.51x = 103,164.36 × 47,932.83
  4. Step 4: Simplify right side
    74,775.51x = 4,944,959,729.94
  5. Step 5: Solve for x
    x = 4,944,959,729.94/74,775.51
  6. Step 6: Final answer
    x = 66,130.74

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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.