Home / 92,821.49-128,090.24-50,379.11

Finding the Fourth Proportional to 92,821.49, 128,090.24 and 50,379.11

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Solution

The fourth proportional to 92,821.49, 128,090.24 and 50,379.11 is: 69,521.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,821.49 : 128,090.24 = 50,379.11 : x
  2. Step 2: Convert to fraction form
    92,821.49/128,090.24 = 50,379.11/x
  3. Step 3: Cross multiply
    92,821.49x = 128,090.24 × 50,379.11
  4. Step 4: Simplify right side
    92,821.49x = 6,453,072,646.62
  5. Step 5: Solve for x
    x = 6,453,072,646.62/92,821.49
  6. Step 6: Final answer
    x = 69,521.32

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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.