Home / 92,128.93-137,971.94-52,566.10

Finding the Fourth Proportional to 92,128.93, 137,971.94 and 52,566.10

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Solution

The fourth proportional to 92,128.93, 137,971.94 and 52,566.10 is: 78,722.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,128.93 : 137,971.94 = 52,566.10 : x
  2. Step 2: Convert to fraction form
    92,128.93/137,971.94 = 52,566.10/x
  3. Step 3: Cross multiply
    92,128.93x = 137,971.94 × 52,566.10
  4. Step 4: Simplify right side
    92,128.93x = 7,252,646,187.47
  5. Step 5: Solve for x
    x = 7,252,646,187.47/92,128.93
  6. Step 6: Final answer
    x = 78,722.79

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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.