Home / 49,821.12-74,731.68-47,329.60

Finding the Fourth Proportional to 49,821.12, 74,731.68 and 47,329.60

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Solution

The fourth proportional to 49,821.12, 74,731.68 and 47,329.60 is: 70,994.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,821.12 : 74,731.68 = 47,329.60 : x
  2. Step 2: Convert to fraction form
    49,821.12/74,731.68 = 47,329.60/x
  3. Step 3: Cross multiply
    49,821.12x = 74,731.68 × 47,329.60
  4. Step 4: Simplify right side
    49,821.12x = 3,537,020,521.73
  5. Step 5: Solve for x
    x = 3,537,020,521.73/49,821.12
  6. Step 6: Final answer
    x = 70,994.40

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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.