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Finding the Fourth Proportional to 45,308.88, 67,955.43 and 12,030.63

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Solution

The fourth proportional to 45,308.88, 67,955.43 and 12,030.63 is: 18,043.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,308.88 : 67,955.43 = 12,030.63 : x
  2. Step 2: Convert to fraction form
    45,308.88/67,955.43 = 12,030.63/x
  3. Step 3: Cross multiply
    45,308.88x = 67,955.43 × 12,030.63
  4. Step 4: Simplify right side
    45,308.88x = 817,546,634.82
  5. Step 5: Solve for x
    x = 817,546,634.82/45,308.88
  6. Step 6: Final answer
    x = 18,043.85

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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.