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Finding the Fourth Proportional to 71,124.73, 98,154.95 and 40,910.02

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Solution

The fourth proportional to 71,124.73, 98,154.95 and 40,910.02 is: 56,457.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,124.73 : 98,154.95 = 40,910.02 : x
  2. Step 2: Convert to fraction form
    71,124.73/98,154.95 = 40,910.02/x
  3. Step 3: Cross multiply
    71,124.73x = 98,154.95 × 40,910.02
  4. Step 4: Simplify right side
    71,124.73x = 4,015,520,967.60
  5. Step 5: Solve for x
    x = 4,015,520,967.60/71,124.73
  6. Step 6: Final answer
    x = 56,457.45

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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.