Home / 98,990.32-136,626.49-58,726.44

Finding the Fourth Proportional to 98,990.32, 136,626.49 and 58,726.44

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Solution

The fourth proportional to 98,990.32, 136,626.49 and 58,726.44 is: 81,054.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,990.32 : 136,626.49 = 58,726.44 : x
  2. Step 2: Convert to fraction form
    98,990.32/136,626.49 = 58,726.44/x
  3. Step 3: Cross multiply
    98,990.32x = 136,626.49 × 58,726.44
  4. Step 4: Simplify right side
    98,990.32x = 8,023,587,367.40
  5. Step 5: Solve for x
    x = 8,023,587,367.40/98,990.32
  6. Step 6: Final answer
    x = 81,054.26

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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.