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Finding the Fourth Proportional to 52,266.68, 72,128.79 and 28,393.82

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Solution

The fourth proportional to 52,266.68, 72,128.79 and 28,393.82 is: 39,183.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,266.68 : 72,128.79 = 28,393.82 : x
  2. Step 2: Convert to fraction form
    52,266.68/72,128.79 = 28,393.82/x
  3. Step 3: Cross multiply
    52,266.68x = 72,128.79 × 28,393.82
  4. Step 4: Simplify right side
    52,266.68x = 2,048,011,880.08
  5. Step 5: Solve for x
    x = 2,048,011,880.08/52,266.68
  6. Step 6: Final answer
    x = 39,183.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.