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Finding the Fourth Proportional to 45,429.84, 68,120.04 and 15,839.76

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Solution

The fourth proportional to 45,429.84, 68,120.04 and 15,839.76 is: 23,751.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,429.84 : 68,120.04 = 15,839.76 : x
  2. Step 2: Convert to fraction form
    45,429.84/68,120.04 = 15,839.76/x
  3. Step 3: Cross multiply
    45,429.84x = 68,120.04 × 15,839.76
  4. Step 4: Simplify right side
    45,429.84x = 1,079,005,084.79
  5. Step 5: Solve for x
    x = 1,079,005,084.79/45,429.84
  6. Step 6: Final answer
    x = 23,751.02

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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.