Home / 72,539.82-100,106.94-40,710.69

Finding the Fourth Proportional to 72,539.82, 100,106.94 and 40,710.69

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Solution

The fourth proportional to 72,539.82, 100,106.94 and 40,710.69 is: 56,181.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,539.82 : 100,106.94 = 40,710.69 : x
  2. Step 2: Convert to fraction form
    72,539.82/100,106.94 = 40,710.69/x
  3. Step 3: Cross multiply
    72,539.82x = 100,106.94 × 40,710.69
  4. Step 4: Simplify right side
    72,539.82x = 4,075,422,601.19
  5. Step 5: Solve for x
    x = 4,075,422,601.19/72,539.82
  6. Step 6: Final answer
    x = 56,181.87

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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.