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Finding the Fourth Proportional to 71,137.80, 98,173.04 and 40,923.14

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Solution

The fourth proportional to 71,137.80, 98,173.04 and 40,923.14 is: 56,475.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,137.80 : 98,173.04 = 40,923.14 : x
  2. Step 2: Convert to fraction form
    71,137.80/98,173.04 = 40,923.14/x
  3. Step 3: Cross multiply
    71,137.80x = 98,173.04 × 40,923.14
  4. Step 4: Simplify right side
    71,137.80x = 4,017,548,364.66
  5. Step 5: Solve for x
    x = 4,017,548,364.66/71,137.80
  6. Step 6: Final answer
    x = 56,475.58

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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.