Home / 76,766.53-115,037.80-34,020.40

Finding the Fourth Proportional to 76,766.53, 115,037.80 and 34,020.40

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Solution

The fourth proportional to 76,766.53, 115,037.80 and 34,020.40 is: 50,980.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,766.53 : 115,037.80 = 34,020.40 : x
  2. Step 2: Convert to fraction form
    76,766.53/115,037.80 = 34,020.40/x
  3. Step 3: Cross multiply
    76,766.53x = 115,037.80 × 34,020.40
  4. Step 4: Simplify right side
    76,766.53x = 3,913,631,971.12
  5. Step 5: Solve for x
    x = 3,913,631,971.12/76,766.53
  6. Step 6: Final answer
    x = 50,980.97

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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.