Home / 71,133.40-98,171.70-40,920.04

Finding the Fourth Proportional to 71,133.40, 98,171.70 and 40,920.04

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Solution

The fourth proportional to 71,133.40, 98,171.70 and 40,920.04 is: 56,474.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,133.40 : 98,171.70 = 40,920.04 : x
  2. Step 2: Convert to fraction form
    71,133.40/98,171.70 = 40,920.04/x
  3. Step 3: Cross multiply
    71,133.40x = 98,171.70 × 40,920.04
  4. Step 4: Simplify right side
    71,133.40x = 4,017,189,890.87
  5. Step 5: Solve for x
    x = 4,017,189,890.87/71,133.40
  6. Step 6: Final answer
    x = 56,474.03

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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.