Home / 75,118.03-103,685.94-43,308.10

Finding the Fourth Proportional to 75,118.03, 103,685.94 and 43,308.10

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Solution

The fourth proportional to 75,118.03, 103,685.94 and 43,308.10 is: 59,778.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,118.03 : 103,685.94 = 43,308.10 : x
  2. Step 2: Convert to fraction form
    75,118.03/103,685.94 = 43,308.10/x
  3. Step 3: Cross multiply
    75,118.03x = 103,685.94 × 43,308.10
  4. Step 4: Simplify right side
    75,118.03x = 4,490,441,058.11
  5. Step 5: Solve for x
    x = 4,490,441,058.11/75,118.03
  6. Step 6: Final answer
    x = 59,778.47

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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.