Home / 77,035.04-115,218.92-45,369.60

Finding the Fourth Proportional to 77,035.04, 115,218.92 and 45,369.60

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Solution

The fourth proportional to 77,035.04, 115,218.92 and 45,369.60 is: 67,857.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,035.04 : 115,218.92 = 45,369.60 : x
  2. Step 2: Convert to fraction form
    77,035.04/115,218.92 = 45,369.60/x
  3. Step 3: Cross multiply
    77,035.04x = 115,218.92 × 45,369.60
  4. Step 4: Simplify right side
    77,035.04x = 5,227,436,312.83
  5. Step 5: Solve for x
    x = 5,227,436,312.83/77,035.04
  6. Step 6: Final answer
    x = 67,857.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.