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Finding the Fourth Proportional to 36,146.80, 54,220.20 and 12,773.20

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Solution

The fourth proportional to 36,146.80, 54,220.20 and 12,773.20 is: 19,159.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,146.80 : 54,220.20 = 12,773.20 : x
  2. Step 2: Convert to fraction form
    36,146.80/54,220.20 = 12,773.20/x
  3. Step 3: Cross multiply
    36,146.80x = 54,220.20 × 12,773.20
  4. Step 4: Simplify right side
    36,146.80x = 692,565,458.64
  5. Step 5: Solve for x
    x = 692,565,458.64/36,146.80
  6. Step 6: Final answer
    x = 19,159.80

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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.