Home / 79,944.16-119,974.74-38,420.32

Finding the Fourth Proportional to 79,944.16, 119,974.74 and 38,420.32

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Solution

The fourth proportional to 79,944.16, 119,974.74 and 38,420.32 is: 57,658.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,944.16 : 119,974.74 = 38,420.32 : x
  2. Step 2: Convert to fraction form
    79,944.16/119,974.74 = 38,420.32/x
  3. Step 3: Cross multiply
    79,944.16x = 119,974.74 × 38,420.32
  4. Step 4: Simplify right side
    79,944.16x = 4,609,467,902.72
  5. Step 5: Solve for x
    x = 4,609,467,902.72/79,944.16
  6. Step 6: Final answer
    x = 57,658.59

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1.5x scale

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.