Home / 71,918.34-99,247.80-40,089.24

Finding the Fourth Proportional to 71,918.34, 99,247.80 and 40,089.24

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Solution

The fourth proportional to 71,918.34, 99,247.80 and 40,089.24 is: 55,323.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,918.34 : 99,247.80 = 40,089.24 : x
  2. Step 2: Convert to fraction form
    71,918.34/99,247.80 = 40,089.24/x
  3. Step 3: Cross multiply
    71,918.34x = 99,247.80 × 40,089.24
  4. Step 4: Simplify right side
    71,918.34x = 3,978,768,873.67
  5. Step 5: Solve for x
    x = 3,978,768,873.67/71,918.34
  6. Step 6: Final answer
    x = 55,323.42

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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.