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Finding the Fourth Proportional to 45,548, 68,333.52 and 12,716

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Solution

The fourth proportional to 45,548, 68,333.52 and 12,716 is: 19,077.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,548 : 68,333.52 = 12,716 : x
  2. Step 2: Convert to fraction form
    45,548/68,333.52 = 12,716/x
  3. Step 3: Cross multiply
    45,548x = 68,333.52 × 12,716
  4. Step 4: Simplify right side
    45,548x = 868,929,040.32
  5. Step 5: Solve for x
    x = 868,929,040.32/45,548
  6. Step 6: Final answer
    x = 19,077.22

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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.