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Finding the Fourth Proportional to 36,478.72, 54,718.08 and 8,776.72

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Solution

The fourth proportional to 36,478.72, 54,718.08 and 8,776.72 is: 13,165.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,478.72 : 54,718.08 = 8,776.72 : x
  2. Step 2: Convert to fraction form
    36,478.72/54,718.08 = 8,776.72/x
  3. Step 3: Cross multiply
    36,478.72x = 54,718.08 × 8,776.72
  4. Step 4: Simplify right side
    36,478.72x = 480,245,267.10
  5. Step 5: Solve for x
    x = 480,245,267.10/36,478.72
  6. Step 6: Final answer
    x = 13,165.08

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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.