Home / 99,055.08-136,705.44-56,605.38

Finding the Fourth Proportional to 99,055.08, 136,705.44 and 56,605.38

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Solution

The fourth proportional to 99,055.08, 136,705.44 and 56,605.38 is: 78,120.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,055.08 : 136,705.44 = 56,605.38 : x
  2. Step 2: Convert to fraction form
    99,055.08/136,705.44 = 56,605.38/x
  3. Step 3: Cross multiply
    99,055.08x = 136,705.44 × 56,605.38
  4. Step 4: Simplify right side
    99,055.08x = 7,738,263,379.27
  5. Step 5: Solve for x
    x = 7,738,263,379.27/99,055.08
  6. Step 6: Final answer
    x = 78,120.81

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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.