Home / 77,808.96-116,538.39-54,539.28

Finding the Fourth Proportional to 77,808.96, 116,538.39 and 54,539.28

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Solution

The fourth proportional to 77,808.96, 116,538.39 and 54,539.28 is: 81,686.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,808.96 : 116,538.39 = 54,539.28 : x
  2. Step 2: Convert to fraction form
    77,808.96/116,538.39 = 54,539.28/x
  3. Step 3: Cross multiply
    77,808.96x = 116,538.39 × 54,539.28
  4. Step 4: Simplify right side
    77,808.96x = 6,355,919,882.96
  5. Step 5: Solve for x
    x = 6,355,919,882.96/77,808.96
  6. Step 6: Final answer
    x = 81,686.22

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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.