Home / 76,971.30-115,370.61-50,368.47

Finding the Fourth Proportional to 76,971.30, 115,370.61 and 50,368.47

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Solution

The fourth proportional to 76,971.30, 115,370.61 and 50,368.47 is: 75,496.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,971.30 : 115,370.61 = 50,368.47 : x
  2. Step 2: Convert to fraction form
    76,971.30/115,370.61 = 50,368.47/x
  3. Step 3: Cross multiply
    76,971.30x = 115,370.61 × 50,368.47
  4. Step 4: Simplify right side
    76,971.30x = 5,811,041,108.67
  5. Step 5: Solve for x
    x = 5,811,041,108.67/76,971.30
  6. Step 6: Final answer
    x = 75,496.21

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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.