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Finding the Fourth Proportional to 45,658, 68,392.66 and 26,880.18

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Solution

The fourth proportional to 45,658, 68,392.66 and 26,880.18 is: 40,264.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,658 : 68,392.66 = 26,880.18 : x
  2. Step 2: Convert to fraction form
    45,658/68,392.66 = 26,880.18/x
  3. Step 3: Cross multiply
    45,658x = 68,392.66 × 26,880.18
  4. Step 4: Simplify right side
    45,658x = 1,838,407,011.48
  5. Step 5: Solve for x
    x = 1,838,407,011.48/45,658
  6. Step 6: Final answer
    x = 40,264.73

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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.