Home / 74,046.58-111,020.46-40,782.40

Finding the Fourth Proportional to 74,046.58, 111,020.46 and 40,782.40

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Solution

The fourth proportional to 74,046.58, 111,020.46 and 40,782.40 is: 61,146.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,046.58 : 111,020.46 = 40,782.40 : x
  2. Step 2: Convert to fraction form
    74,046.58/111,020.46 = 40,782.40/x
  3. Step 3: Cross multiply
    74,046.58x = 111,020.46 × 40,782.40
  4. Step 4: Simplify right side
    74,046.58x = 4,527,680,807.90
  5. Step 5: Solve for x
    x = 4,527,680,807.90/74,046.58
  6. Step 6: Final answer
    x = 61,146.39

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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.