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Finding the Fourth Proportional to 55,965.52, 84,000.12 and 28,282.96

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Solution

The fourth proportional to 55,965.52, 84,000.12 and 28,282.96 is: 42,450.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,965.52 : 84,000.12 = 28,282.96 : x
  2. Step 2: Convert to fraction form
    55,965.52/84,000.12 = 28,282.96/x
  3. Step 3: Cross multiply
    55,965.52x = 84,000.12 × 28,282.96
  4. Step 4: Simplify right side
    55,965.52x = 2,375,772,033.96
  5. Step 5: Solve for x
    x = 2,375,772,033.96/55,965.52
  6. Step 6: Final answer
    x = 42,450.64

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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.