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Finding the Fourth Proportional to 71,014.60, 98,004.90 and 40,809.70

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Solution

The fourth proportional to 71,014.60, 98,004.90 and 40,809.70 is: 56,320.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,014.60 : 98,004.90 = 40,809.70 : x
  2. Step 2: Convert to fraction form
    71,014.60/98,004.90 = 40,809.70/x
  3. Step 3: Cross multiply
    71,014.60x = 98,004.90 × 40,809.70
  4. Step 4: Simplify right side
    71,014.60x = 3,999,550,567.53
  5. Step 5: Solve for x
    x = 3,999,550,567.53/71,014.60
  6. Step 6: Final answer
    x = 56,320.12

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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.