Home / 77,380.48-116,052.24-39,921.28

Finding the Fourth Proportional to 77,380.48, 116,052.24 and 39,921.28

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Solution

The fourth proportional to 77,380.48, 116,052.24 and 39,921.28 is: 59,872.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,380.48 : 116,052.24 = 39,921.28 : x
  2. Step 2: Convert to fraction form
    77,380.48/116,052.24 = 39,921.28/x
  3. Step 3: Cross multiply
    77,380.48x = 116,052.24 × 39,921.28
  4. Step 4: Simplify right side
    77,380.48x = 4,632,953,967.67
  5. Step 5: Solve for x
    x = 4,632,953,967.67/77,380.48
  6. Step 6: Final answer
    x = 59,872.39

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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.