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Finding the Fourth Proportional to 45,000.80, 67,495.28 and 11,723.28

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Solution

The fourth proportional to 45,000.80, 67,495.28 and 11,723.28 is: 17,583.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,000.80 : 67,495.28 = 11,723.28 : x
  2. Step 2: Convert to fraction form
    45,000.80/67,495.28 = 11,723.28/x
  3. Step 3: Cross multiply
    45,000.80x = 67,495.28 × 11,723.28
  4. Step 4: Simplify right side
    45,000.80x = 791,266,066.12
  5. Step 5: Solve for x
    x = 791,266,066.12/45,000.80
  6. Step 6: Final answer
    x = 17,583.38

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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.