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Finding the Fourth Proportional to 71,277.84, 98,374.46 and 40,650.98

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Solution

The fourth proportional to 71,277.84, 98,374.46 and 40,650.98 is: 56,104.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,277.84 : 98,374.46 = 40,650.98 : x
  2. Step 2: Convert to fraction form
    71,277.84/98,374.46 = 40,650.98/x
  3. Step 3: Cross multiply
    71,277.84x = 98,374.46 × 40,650.98
  4. Step 4: Simplify right side
    71,277.84x = 3,999,017,510.84
  5. Step 5: Solve for x
    x = 3,999,017,510.84/71,277.84
  6. Step 6: Final answer
    x = 56,104.64

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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.