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Finding the Fourth Proportional to 72,674.41, 100,298.99 and 40,412.24

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Solution

The fourth proportional to 72,674.41, 100,298.99 and 40,412.24 is: 55,773.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,674.41 : 100,298.99 = 40,412.24 : x
  2. Step 2: Convert to fraction form
    72,674.41/100,298.99 = 40,412.24/x
  3. Step 3: Cross multiply
    72,674.41x = 100,298.99 × 40,412.24
  4. Step 4: Simplify right side
    72,674.41x = 4,053,306,855.64
  5. Step 5: Solve for x
    x = 4,053,306,855.64/72,674.41
  6. Step 6: Final answer
    x = 55,773.51

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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.