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Finding the Fourth Proportional to 36,057.78, 54,068.76 and 12,358.65

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Solution

The fourth proportional to 36,057.78, 54,068.76 and 12,358.65 is: 18,531.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,057.78 : 54,068.76 = 12,358.65 : x
  2. Step 2: Convert to fraction form
    36,057.78/54,068.76 = 12,358.65/x
  3. Step 3: Cross multiply
    36,057.78x = 54,068.76 × 12,358.65
  4. Step 4: Simplify right side
    36,057.78x = 668,216,880.77
  5. Step 5: Solve for x
    x = 668,216,880.77/36,057.78
  6. Step 6: Final answer
    x = 18,531.84

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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.