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Finding the Fourth Proportional to 72,596.55, 100,184.43 and 40,764.75

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Solution

The fourth proportional to 72,596.55, 100,184.43 and 40,764.75 is: 56,256.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,596.55 : 100,184.43 = 40,764.75 : x
  2. Step 2: Convert to fraction form
    72,596.55/100,184.43 = 40,764.75/x
  3. Step 3: Cross multiply
    72,596.55x = 100,184.43 × 40,764.75
  4. Step 4: Simplify right side
    72,596.55x = 4,083,993,242.84
  5. Step 5: Solve for x
    x = 4,083,993,242.84/72,596.55
  6. Step 6: Final answer
    x = 56,256.02

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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.