Home / 74,741.52-112,139.62-34,779.56

Finding the Fourth Proportional to 74,741.52, 112,139.62 and 34,779.56

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Solution

The fourth proportional to 74,741.52, 112,139.62 and 34,779.56 is: 52,182.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,741.52 : 112,139.62 = 34,779.56 : x
  2. Step 2: Convert to fraction form
    74,741.52/112,139.62 = 34,779.56/x
  3. Step 3: Cross multiply
    74,741.52x = 112,139.62 × 34,779.56
  4. Step 4: Simplify right side
    74,741.52x = 3,900,166,835.57
  5. Step 5: Solve for x
    x = 3,900,166,835.57/74,741.52
  6. Step 6: Final answer
    x = 52,182.06

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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.