Home / 98,745.39-136,265.27-56,317.59

Finding the Fourth Proportional to 98,745.39, 136,265.27 and 56,317.59

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Solution

The fourth proportional to 98,745.39, 136,265.27 and 56,317.59 is: 77,716.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,745.39 : 136,265.27 = 56,317.59 : x
  2. Step 2: Convert to fraction form
    98,745.39/136,265.27 = 56,317.59/x
  3. Step 3: Cross multiply
    98,745.39x = 136,265.27 × 56,317.59
  4. Step 4: Simplify right side
    98,745.39x = 7,674,131,607.10
  5. Step 5: Solve for x
    x = 7,674,131,607.10/98,745.39
  6. Step 6: Final answer
    x = 77,716.35

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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.