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Finding the Fourth Proportional to 72,494.96, 100,048.52 and 40,235.68

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Solution

The fourth proportional to 72,494.96, 100,048.52 and 40,235.68 is: 55,528.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,494.96 : 100,048.52 = 40,235.68 : x
  2. Step 2: Convert to fraction form
    72,494.96/100,048.52 = 40,235.68/x
  3. Step 3: Cross multiply
    72,494.96x = 100,048.52 × 40,235.68
  4. Step 4: Simplify right side
    72,494.96x = 4,025,520,235.19
  5. Step 5: Solve for x
    x = 4,025,520,235.19/72,494.96
  6. Step 6: Final answer
    x = 55,528.28

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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.