Home / 72,519.32-100,075.10-40,252.05

Finding the Fourth Proportional to 72,519.32, 100,075.10 and 40,252.05

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Solution

The fourth proportional to 72,519.32, 100,075.10 and 40,252.05 is: 55,546.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,519.32 : 100,075.10 = 40,252.05 : x
  2. Step 2: Convert to fraction form
    72,519.32/100,075.10 = 40,252.05/x
  3. Step 3: Cross multiply
    72,519.32x = 100,075.10 × 40,252.05
  4. Step 4: Simplify right side
    72,519.32x = 4,028,227,727.69
  5. Step 5: Solve for x
    x = 4,028,227,727.69/72,519.32
  6. Step 6: Final answer
    x = 55,546.96

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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.