Home / 49,987.53-74,981.30-45,815.83

Finding the Fourth Proportional to 49,987.53, 74,981.30 and 45,815.83

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Solution

The fourth proportional to 49,987.53, 74,981.30 and 45,815.83 is: 68,723.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,987.53 : 74,981.30 = 45,815.83 : x
  2. Step 2: Convert to fraction form
    49,987.53/74,981.30 = 45,815.83/x
  3. Step 3: Cross multiply
    49,987.53x = 74,981.30 × 45,815.83
  4. Step 4: Simplify right side
    49,987.53x = 3,435,330,077.45
  5. Step 5: Solve for x
    x = 3,435,330,077.45/49,987.53
  6. Step 6: Final answer
    x = 68,723.74

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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.