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Finding the Fourth Proportional to 55,200.30, 82,800.45 and 13,647.30

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Solution

The fourth proportional to 55,200.30, 82,800.45 and 13,647.30 is: 20,470.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,200.30 : 82,800.45 = 13,647.30 : x
  2. Step 2: Convert to fraction form
    55,200.30/82,800.45 = 13,647.30/x
  3. Step 3: Cross multiply
    55,200.30x = 82,800.45 × 13,647.30
  4. Step 4: Simplify right side
    55,200.30x = 1,130,002,581.29
  5. Step 5: Solve for x
    x = 1,130,002,581.29/55,200.30
  6. Step 6: Final answer
    x = 20,470.95

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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.