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Finding the Fourth Proportional to 72,633.68, 100,238.76 and 54,697.04

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Solution

The fourth proportional to 72,633.68, 100,238.76 and 54,697.04 is: 75,485.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,633.68 : 100,238.76 = 54,697.04 : x
  2. Step 2: Convert to fraction form
    72,633.68/100,238.76 = 54,697.04/x
  3. Step 3: Cross multiply
    72,633.68x = 100,238.76 × 54,697.04
  4. Step 4: Simplify right side
    72,633.68x = 5,482,763,465.27
  5. Step 5: Solve for x
    x = 5,482,763,465.27/72,633.68
  6. Step 6: Final answer
    x = 75,485.14

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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.