Home / 76,485.15-114,688.33-34,329.09

Finding the Fourth Proportional to 76,485.15, 114,688.33 and 34,329.09

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Solution

The fourth proportional to 76,485.15, 114,688.33 and 34,329.09 is: 51,475.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,485.15 : 114,688.33 = 34,329.09 : x
  2. Step 2: Convert to fraction form
    76,485.15/114,688.33 = 34,329.09/x
  3. Step 3: Cross multiply
    76,485.15x = 114,688.33 × 34,329.09
  4. Step 4: Simplify right side
    76,485.15x = 3,937,146,120.77
  5. Step 5: Solve for x
    x = 3,937,146,120.77/76,485.15
  6. Step 6: Final answer
    x = 51,475.96

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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.