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Finding the Fourth Proportional to 55,000.60, 82,484.70 and 21,709.60

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Solution

The fourth proportional to 55,000.60, 82,484.70 and 21,709.60 is: 32,558.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,000.60 : 82,484.70 = 21,709.60 : x
  2. Step 2: Convert to fraction form
    55,000.60/82,484.70 = 21,709.60/x
  3. Step 3: Cross multiply
    55,000.60x = 82,484.70 × 21,709.60
  4. Step 4: Simplify right side
    55,000.60x = 1,790,709,843.12
  5. Step 5: Solve for x
    x = 1,790,709,843.12/55,000.60
  6. Step 6: Final answer
    x = 32,558.01

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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.