Home / 75,126.86-103,680.06-43,297.80

Finding the Fourth Proportional to 75,126.86, 103,680.06 and 43,297.80

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Solution

The fourth proportional to 75,126.86, 103,680.06 and 43,297.80 is: 59,753.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,126.86 : 103,680.06 = 43,297.80 : x
  2. Step 2: Convert to fraction form
    75,126.86/103,680.06 = 43,297.80/x
  3. Step 3: Cross multiply
    75,126.86x = 103,680.06 × 43,297.80
  4. Step 4: Simplify right side
    75,126.86x = 4,489,118,501.87
  5. Step 5: Solve for x
    x = 4,489,118,501.87/75,126.86
  6. Step 6: Final answer
    x = 59,753.84

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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.