Home / 98,223.65-135,549.57-55,782.49

Finding the Fourth Proportional to 98,223.65, 135,549.57 and 55,782.49

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Solution

The fourth proportional to 98,223.65, 135,549.57 and 55,782.49 is: 76,980.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,223.65 : 135,549.57 = 55,782.49 : x
  2. Step 2: Convert to fraction form
    98,223.65/135,549.57 = 55,782.49/x
  3. Step 3: Cross multiply
    98,223.65x = 135,549.57 × 55,782.49
  4. Step 4: Simplify right side
    98,223.65x = 7,561,292,533.03
  5. Step 5: Solve for x
    x = 7,561,292,533.03/98,223.65
  6. Step 6: Final answer
    x = 76,980.37

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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.