Home / 66,931.76-100,273.55-47,917.14

Finding the Fourth Proportional to 66,931.76, 100,273.55 and 47,917.14

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Solution

The fourth proportional to 66,931.76, 100,273.55 and 47,917.14 is: 71,786.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,931.76 : 100,273.55 = 47,917.14 : x
  2. Step 2: Convert to fraction form
    66,931.76/100,273.55 = 47,917.14/x
  3. Step 3: Cross multiply
    66,931.76x = 100,273.55 × 47,917.14
  4. Step 4: Simplify right side
    66,931.76x = 4,804,821,494.06
  5. Step 5: Solve for x
    x = 4,804,821,494.06/66,931.76
  6. Step 6: Final answer
    x = 71,786.87

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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.