Home / 76,997.72-115,496.48-56,070.86

Finding the Fourth Proportional to 76,997.72, 115,496.48 and 56,070.86

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Solution

The fourth proportional to 76,997.72, 115,496.48 and 56,070.86 is: 84,106.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,997.72 : 115,496.48 = 56,070.86 : x
  2. Step 2: Convert to fraction form
    76,997.72/115,496.48 = 56,070.86/x
  3. Step 3: Cross multiply
    76,997.72x = 115,496.48 × 56,070.86
  4. Step 4: Simplify right side
    76,997.72x = 6,475,986,960.57
  5. Step 5: Solve for x
    x = 6,475,986,960.57/76,997.72
  6. Step 6: Final answer
    x = 84,106.22

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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.