Home / 72,465.03-108,684.99-19,157.58

Finding the Fourth Proportional to 72,465.03, 108,684.99 and 19,157.58

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Solution

The fourth proportional to 72,465.03, 108,684.99 and 19,157.58 is: 28,733.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,465.03 : 108,684.99 = 19,157.58 : x
  2. Step 2: Convert to fraction form
    72,465.03/108,684.99 = 19,157.58/x
  3. Step 3: Cross multiply
    72,465.03x = 108,684.99 × 19,157.58
  4. Step 4: Simplify right side
    72,465.03x = 2,082,141,390.72
  5. Step 5: Solve for x
    x = 2,082,141,390.72/72,465.03
  6. Step 6: Final answer
    x = 28,733.05

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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.