Home / 76,400.34-114,434.40-46,728.42

Finding the Fourth Proportional to 76,400.34, 114,434.40 and 46,728.42

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Solution

The fourth proportional to 76,400.34, 114,434.40 and 46,728.42 is: 69,991.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,400.34 : 114,434.40 = 46,728.42 : x
  2. Step 2: Convert to fraction form
    76,400.34/114,434.40 = 46,728.42/x
  3. Step 3: Cross multiply
    76,400.34x = 114,434.40 × 46,728.42
  4. Step 4: Simplify right side
    76,400.34x = 5,347,338,705.65
  5. Step 5: Solve for x
    x = 5,347,338,705.65/76,400.34
  6. Step 6: Final answer
    x = 69,991.03

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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.