Home / 76,784.92-114,903.66-53,097.28

Finding the Fourth Proportional to 76,784.92, 114,903.66 and 53,097.28

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Solution

The fourth proportional to 76,784.92, 114,903.66 and 53,097.28 is: 79,456.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,784.92 : 114,903.66 = 53,097.28 : x
  2. Step 2: Convert to fraction form
    76,784.92/114,903.66 = 53,097.28/x
  3. Step 3: Cross multiply
    76,784.92x = 114,903.66 × 53,097.28
  4. Step 4: Simplify right side
    76,784.92x = 6,101,071,808.04
  5. Step 5: Solve for x
    x = 6,101,071,808.04/76,784.92
  6. Step 6: Final answer
    x = 79,456.64

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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.