Home / 71,150.04-98,186.58-39,318.96

Finding the Fourth Proportional to 71,150.04, 98,186.58 and 39,318.96

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Solution

The fourth proportional to 71,150.04, 98,186.58 and 39,318.96 is: 54,259.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,150.04 : 98,186.58 = 39,318.96 : x
  2. Step 2: Convert to fraction form
    71,150.04/98,186.58 = 39,318.96/x
  3. Step 3: Cross multiply
    71,150.04x = 98,186.58 × 39,318.96
  4. Step 4: Simplify right side
    71,150.04x = 3,860,594,211.56
  5. Step 5: Solve for x
    x = 3,860,594,211.56/71,150.04
  6. Step 6: Final answer
    x = 54,259.90

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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.