Home / 72,976.75-100,707.93-39,442.75

Finding the Fourth Proportional to 72,976.75, 100,707.93 and 39,442.75

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Solution

The fourth proportional to 72,976.75, 100,707.93 and 39,442.75 is: 54,431.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,976.75 : 100,707.93 = 39,442.75 : x
  2. Step 2: Convert to fraction form
    72,976.75/100,707.93 = 39,442.75/x
  3. Step 3: Cross multiply
    72,976.75x = 100,707.93 × 39,442.75
  4. Step 4: Simplify right side
    72,976.75x = 3,972,197,706.01
  5. Step 5: Solve for x
    x = 3,972,197,706.01/72,976.75
  6. Step 6: Final answer
    x = 54,431.00

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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.