Home / 73,188.12-109,779.60-31,041.12

Finding the Fourth Proportional to 73,188.12, 109,779.60 and 31,041.12

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Solution

The fourth proportional to 73,188.12, 109,779.60 and 31,041.12 is: 46,560.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,188.12 : 109,779.60 = 31,041.12 : x
  2. Step 2: Convert to fraction form
    73,188.12/109,779.60 = 31,041.12/x
  3. Step 3: Cross multiply
    73,188.12x = 109,779.60 × 31,041.12
  4. Step 4: Simplify right side
    73,188.12x = 3,407,681,737.15
  5. Step 5: Solve for x
    x = 3,407,681,737.15/73,188.12
  6. Step 6: Final answer
    x = 46,560.59

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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.