Home / 72,990.18-109,485.27-26,217.54

Finding the Fourth Proportional to 72,990.18, 109,485.27 and 26,217.54

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Solution

The fourth proportional to 72,990.18, 109,485.27 and 26,217.54 is: 39,326.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,990.18 : 109,485.27 = 26,217.54 : x
  2. Step 2: Convert to fraction form
    72,990.18/109,485.27 = 26,217.54/x
  3. Step 3: Cross multiply
    72,990.18x = 109,485.27 × 26,217.54
  4. Step 4: Simplify right side
    72,990.18x = 2,870,434,445.64
  5. Step 5: Solve for x
    x = 2,870,434,445.64/72,990.18
  6. Step 6: Final answer
    x = 39,326.31

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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.