Home / 72,478.15-108,717.23-48,858.55

Finding the Fourth Proportional to 72,478.15, 108,717.23 and 48,858.55

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Solution

The fourth proportional to 72,478.15, 108,717.23 and 48,858.55 is: 73,287.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,478.15 : 108,717.23 = 48,858.55 : x
  2. Step 2: Convert to fraction form
    72,478.15/108,717.23 = 48,858.55/x
  3. Step 3: Cross multiply
    72,478.15x = 108,717.23 × 48,858.55
  4. Step 4: Simplify right side
    72,478.15x = 5,311,765,973.52
  5. Step 5: Solve for x
    x = 5,311,765,973.52/72,478.15
  6. Step 6: Final answer
    x = 73,287.83

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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.