Home / 77,468.40-116,241-30,720.24

Finding the Fourth Proportional to 77,468.40, 116,241 and 30,720.24

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Solution

The fourth proportional to 77,468.40, 116,241 and 30,720.24 is: 46,095.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,468.40 : 116,241 = 30,720.24 : x
  2. Step 2: Convert to fraction form
    77,468.40/116,241 = 30,720.24/x
  3. Step 3: Cross multiply
    77,468.40x = 116,241 × 30,720.24
  4. Step 4: Simplify right side
    77,468.40x = 3,570,951,417.84
  5. Step 5: Solve for x
    x = 3,570,951,417.84/77,468.40
  6. Step 6: Final answer
    x = 46,095.59

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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.