Home / 76,870.38-114,541.36-68,485.96

Finding the Fourth Proportional to 76,870.38, 114,541.36 and 68,485.96

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Solution

The fourth proportional to 76,870.38, 114,541.36 and 68,485.96 is: 102,048.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,870.38 : 114,541.36 = 68,485.96 : x
  2. Step 2: Convert to fraction form
    76,870.38/114,541.36 = 68,485.96/x
  3. Step 3: Cross multiply
    76,870.38x = 114,541.36 × 68,485.96
  4. Step 4: Simplify right side
    76,870.38x = 7,844,474,999.31
  5. Step 5: Solve for x
    x = 7,844,474,999.31/76,870.38
  6. Step 6: Final answer
    x = 102,048.08

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.