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Finding the Fourth Proportional to 71,811.16, 98,882.98 and 67,602.94

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Solution

The fourth proportional to 71,811.16, 98,882.98 and 67,602.94 is: 93,088.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,811.16 : 98,882.98 = 67,602.94 : x
  2. Step 2: Convert to fraction form
    71,811.16/98,882.98 = 67,602.94/x
  3. Step 3: Cross multiply
    71,811.16x = 98,882.98 × 67,602.94
  4. Step 4: Simplify right side
    71,811.16x = 6,684,780,163.96
  5. Step 5: Solve for x
    x = 6,684,780,163.96/71,811.16
  6. Step 6: Final answer
    x = 93,088.32

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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.