Home / 80,638.93-111,284.29-48,362.46

Finding the Fourth Proportional to 80,638.93, 111,284.29 and 48,362.46

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Solution

The fourth proportional to 80,638.93, 111,284.29 and 48,362.46 is: 66,741.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,638.93 : 111,284.29 = 48,362.46 : x
  2. Step 2: Convert to fraction form
    80,638.93/111,284.29 = 48,362.46/x
  3. Step 3: Cross multiply
    80,638.93x = 111,284.29 × 48,362.46
  4. Step 4: Simplify right side
    80,638.93x = 5,381,982,023.75
  5. Step 5: Solve for x
    x = 5,381,982,023.75/80,638.93
  6. Step 6: Final answer
    x = 66,741.73

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1.5x scale

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.