Home / 99,265.77-136,989.82-56,837.97

Finding the Fourth Proportional to 99,265.77, 136,989.82 and 56,837.97

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Solution

The fourth proportional to 99,265.77, 136,989.82 and 56,837.97 is: 78,438.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,265.77 : 136,989.82 = 56,837.97 : x
  2. Step 2: Convert to fraction form
    99,265.77/136,989.82 = 56,837.97/x
  3. Step 3: Cross multiply
    99,265.77x = 136,989.82 × 56,837.97
  4. Step 4: Simplify right side
    99,265.77x = 7,786,223,279.47
  5. Step 5: Solve for x
    x = 7,786,223,279.47/99,265.77
  6. Step 6: Final answer
    x = 78,438.15

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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.