Home / 98,905.80-136,490.30-53,583.57

Finding the Fourth Proportional to 98,905.80, 136,490.30 and 53,583.57

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Solution

The fourth proportional to 98,905.80, 136,490.30 and 53,583.57 is: 73,945.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,905.80 : 136,490.30 = 53,583.57 : x
  2. Step 2: Convert to fraction form
    98,905.80/136,490.30 = 53,583.57/x
  3. Step 3: Cross multiply
    98,905.80x = 136,490.30 × 53,583.57
  4. Step 4: Simplify right side
    98,905.80x = 7,313,637,276.45
  5. Step 5: Solve for x
    x = 7,313,637,276.45/98,905.80
  6. Step 6: Final answer
    x = 73,945.48

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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.