Home / 74,932.16-112,420.71-31,675.59

Finding the Fourth Proportional to 74,932.16, 112,420.71 and 31,675.59

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Solution

The fourth proportional to 74,932.16, 112,420.71 and 31,675.59 is: 47,522.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,932.16 : 112,420.71 = 31,675.59 : x
  2. Step 2: Convert to fraction form
    74,932.16/112,420.71 = 31,675.59/x
  3. Step 3: Cross multiply
    74,932.16x = 112,420.71 × 31,675.59
  4. Step 4: Simplify right side
    74,932.16x = 3,560,992,317.47
  5. Step 5: Solve for x
    x = 3,560,992,317.47/74,932.16
  6. Step 6: Final answer
    x = 47,522.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.