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Finding the Fourth Proportional to 72,025.39, 108,038.08 and 19,434.87

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Solution

The fourth proportional to 72,025.39, 108,038.08 and 19,434.87 is: 29,152.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,025.39 : 108,038.08 = 19,434.87 : x
  2. Step 2: Convert to fraction form
    72,025.39/108,038.08 = 19,434.87/x
  3. Step 3: Cross multiply
    72,025.39x = 108,038.08 × 19,434.87
  4. Step 4: Simplify right side
    72,025.39x = 2,099,705,942.68
  5. Step 5: Solve for x
    x = 2,099,705,942.68/72,025.39
  6. Step 6: Final answer
    x = 29,152.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.