Home / 72,542.32-100,108.44-40,711.22

Finding the Fourth Proportional to 72,542.32, 100,108.44 and 40,711.22

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Solution

The fourth proportional to 72,542.32, 100,108.44 and 40,711.22 is: 56,181.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,542.32 : 100,108.44 = 40,711.22 : x
  2. Step 2: Convert to fraction form
    72,542.32/100,108.44 = 40,711.22/x
  3. Step 3: Cross multiply
    72,542.32x = 100,108.44 × 40,711.22
  4. Step 4: Simplify right side
    72,542.32x = 4,075,536,599.56
  5. Step 5: Solve for x
    x = 4,075,536,599.56/72,542.32
  6. Step 6: Final answer
    x = 56,181.51

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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.