Home / 77,784.10-116,836.47-51,212.86

Finding the Fourth Proportional to 77,784.10, 116,836.47 and 51,212.86

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Solution

The fourth proportional to 77,784.10, 116,836.47 and 51,212.86 is: 76,924.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,784.10 : 116,836.47 = 51,212.86 : x
  2. Step 2: Convert to fraction form
    77,784.10/116,836.47 = 51,212.86/x
  3. Step 3: Cross multiply
    77,784.10x = 116,836.47 × 51,212.86
  4. Step 4: Simplify right side
    77,784.10x = 5,983,529,781.00
  5. Step 5: Solve for x
    x = 5,983,529,781.00/77,784.10
  6. Step 6: Final answer
    x = 76,924.84

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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.