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Finding the Fourth Proportional to 62,718.80, 94,121.40 and 45,203.60

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Solution

The fourth proportional to 62,718.80, 94,121.40 and 45,203.60 is: 67,836.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,718.80 : 94,121.40 = 45,203.60 : x
  2. Step 2: Convert to fraction form
    62,718.80/94,121.40 = 45,203.60/x
  3. Step 3: Cross multiply
    62,718.80x = 94,121.40 × 45,203.60
  4. Step 4: Simplify right side
    62,718.80x = 4,254,626,117.04
  5. Step 5: Solve for x
    x = 4,254,626,117.04/62,718.80
  6. Step 6: Final answer
    x = 67,836.54

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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.