Home / 65,939.36-98,918.76-19,186.16

Finding the Fourth Proportional to 65,939.36, 98,918.76 and 19,186.16

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Solution

The fourth proportional to 65,939.36, 98,918.76 and 19,186.16 is: 28,782.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,939.36 : 98,918.76 = 19,186.16 : x
  2. Step 2: Convert to fraction form
    65,939.36/98,918.76 = 19,186.16/x
  3. Step 3: Cross multiply
    65,939.36x = 98,918.76 × 19,186.16
  4. Step 4: Simplify right side
    65,939.36x = 1,897,871,156.36
  5. Step 5: Solve for x
    x = 1,897,871,156.36/65,939.36
  6. Step 6: Final answer
    x = 28,782.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.