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Finding the Fourth Proportional to 55,293.83, 82,938.01 and 20,230.75

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Solution

The fourth proportional to 55,293.83, 82,938.01 and 20,230.75 is: 30,345.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,293.83 : 82,938.01 = 20,230.75 : x
  2. Step 2: Convert to fraction form
    55,293.83/82,938.01 = 20,230.75/x
  3. Step 3: Cross multiply
    55,293.83x = 82,938.01 × 20,230.75
  4. Step 4: Simplify right side
    55,293.83x = 1,677,898,145.81
  5. Step 5: Solve for x
    x = 1,677,898,145.81/55,293.83
  6. Step 6: Final answer
    x = 30,345.12

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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.