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Finding the Fourth Proportional to 71,657.95, 98,662.09 and 65,014.94

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Solution

The fourth proportional to 71,657.95, 98,662.09 and 65,014.94 is: 89,515.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,657.95 : 98,662.09 = 65,014.94 : x
  2. Step 2: Convert to fraction form
    71,657.95/98,662.09 = 65,014.94/x
  3. Step 3: Cross multiply
    71,657.95x = 98,662.09 × 65,014.94
  4. Step 4: Simplify right side
    71,657.95x = 6,414,509,861.62
  5. Step 5: Solve for x
    x = 6,414,509,861.62/71,657.95
  6. Step 6: Final answer
    x = 89,515.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.