Home / 72,550.75-100,118.62-40,283.70

Finding the Fourth Proportional to 72,550.75, 100,118.62 and 40,283.70

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Solution

The fourth proportional to 72,550.75, 100,118.62 and 40,283.70 is: 55,590.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,550.75 : 100,118.62 = 40,283.70 : x
  2. Step 2: Convert to fraction form
    72,550.75/100,118.62 = 40,283.70/x
  3. Step 3: Cross multiply
    72,550.75x = 100,118.62 × 40,283.70
  4. Step 4: Simplify right side
    72,550.75x = 4,033,148,463.98
  5. Step 5: Solve for x
    x = 4,033,148,463.98/72,550.75
  6. Step 6: Final answer
    x = 55,590.72

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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.