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Finding the Fourth Proportional to 68,218.74, 93,460.02 and 65,661.98

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Solution

The fourth proportional to 68,218.74, 93,460.02 and 65,661.98 is: 89,957.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,218.74 : 93,460.02 = 65,661.98 : x
  2. Step 2: Convert to fraction form
    68,218.74/93,460.02 = 65,661.98/x
  3. Step 3: Cross multiply
    68,218.74x = 93,460.02 × 65,661.98
  4. Step 4: Simplify right side
    68,218.74x = 6,136,769,496.74
  5. Step 5: Solve for x
    x = 6,136,769,496.74/68,218.74
  6. Step 6: Final answer
    x = 89,957.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.