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Finding the Fourth Proportional to 71,506.80, 107,260.20 and 54,950.40

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Solution

The fourth proportional to 71,506.80, 107,260.20 and 54,950.40 is: 82,425.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,506.80 : 107,260.20 = 54,950.40 : x
  2. Step 2: Convert to fraction form
    71,506.80/107,260.20 = 54,950.40/x
  3. Step 3: Cross multiply
    71,506.80x = 107,260.20 × 54,950.40
  4. Step 4: Simplify right side
    71,506.80x = 5,893,990,894.08
  5. Step 5: Solve for x
    x = 5,893,990,894.08/71,506.80
  6. Step 6: Final answer
    x = 82,425.60

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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.