Home / 40,074.92-60,115.64-13,779.68

Finding the Fourth Proportional to 40,074.92, 60,115.64 and 13,779.68

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Solution

The fourth proportional to 40,074.92, 60,115.64 and 13,779.68 is: 20,670.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,074.92 : 60,115.64 = 13,779.68 : x
  2. Step 2: Convert to fraction form
    40,074.92/60,115.64 = 13,779.68/x
  3. Step 3: Cross multiply
    40,074.92x = 60,115.64 × 13,779.68
  4. Step 4: Simplify right side
    40,074.92x = 828,374,282.20
  5. Step 5: Solve for x
    x = 828,374,282.20/40,074.92
  6. Step 6: Final answer
    x = 20,670.64

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1.5x scale

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.