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Finding the Fourth Proportional to 45,117.84, 67,676.76 and 13,952.40

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Solution

The fourth proportional to 45,117.84, 67,676.76 and 13,952.40 is: 20,928.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,117.84 : 67,676.76 = 13,952.40 : x
  2. Step 2: Convert to fraction form
    45,117.84/67,676.76 = 13,952.40/x
  3. Step 3: Cross multiply
    45,117.84x = 67,676.76 × 13,952.40
  4. Step 4: Simplify right side
    45,117.84x = 944,253,226.22
  5. Step 5: Solve for x
    x = 944,253,226.22/45,117.84
  6. Step 6: Final answer
    x = 20,928.60

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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.