Home / 77,966.43-107,593.65-42,156.45

Finding the Fourth Proportional to 77,966.43, 107,593.65 and 42,156.45

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Solution

The fourth proportional to 77,966.43, 107,593.65 and 42,156.45 is: 58,175.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,966.43 : 107,593.65 = 42,156.45 : x
  2. Step 2: Convert to fraction form
    77,966.43/107,593.65 = 42,156.45/x
  3. Step 3: Cross multiply
    77,966.43x = 107,593.65 × 42,156.45
  4. Step 4: Simplify right side
    77,966.43x = 4,535,766,326.54
  5. Step 5: Solve for x
    x = 4,535,766,326.54/77,966.43
  6. Step 6: Final answer
    x = 58,175.89

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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.