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Finding the Fourth Proportional to 45,459.88, 68,225.82 and 19,182.76

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Solution

The fourth proportional to 45,459.88, 68,225.82 and 19,182.76 is: 28,789.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,459.88 : 68,225.82 = 19,182.76 : x
  2. Step 2: Convert to fraction form
    45,459.88/68,225.82 = 19,182.76/x
  3. Step 3: Cross multiply
    45,459.88x = 68,225.82 × 19,182.76
  4. Step 4: Simplify right side
    45,459.88x = 1,308,759,530.86
  5. Step 5: Solve for x
    x = 1,308,759,530.86/45,459.88
  6. Step 6: Final answer
    x = 28,789.33

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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.