Home / 74,678.40-102,999.24-50,764.76

Finding the Fourth Proportional to 74,678.40, 102,999.24 and 50,764.76

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Solution

The fourth proportional to 74,678.40, 102,999.24 and 50,764.76 is: 70,016.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,678.40 : 102,999.24 = 50,764.76 : x
  2. Step 2: Convert to fraction form
    74,678.40/102,999.24 = 50,764.76/x
  3. Step 3: Cross multiply
    74,678.40x = 102,999.24 × 50,764.76
  4. Step 4: Simplify right side
    74,678.40x = 5,228,731,698.78
  5. Step 5: Solve for x
    x = 5,228,731,698.78/74,678.40
  6. Step 6: Final answer
    x = 70,016.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.