Home / 75,186.40-103,753.56-43,355.92

Finding the Fourth Proportional to 75,186.40, 103,753.56 and 43,355.92

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Solution

The fourth proportional to 75,186.40, 103,753.56 and 43,355.92 is: 59,829.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,186.40 : 103,753.56 = 43,355.92 : x
  2. Step 2: Convert to fraction form
    75,186.40/103,753.56 = 43,355.92/x
  3. Step 3: Cross multiply
    75,186.40x = 103,753.56 × 43,355.92
  4. Step 4: Simplify right side
    75,186.40x = 4,498,331,047.08
  5. Step 5: Solve for x
    x = 4,498,331,047.08/75,186.40
  6. Step 6: Final answer
    x = 59,829.05

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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.