Home / 98,986.50-136,577.70-55,966.86

Finding the Fourth Proportional to 98,986.50, 136,577.70 and 55,966.86

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Solution

The fourth proportional to 98,986.50, 136,577.70 and 55,966.86 is: 77,220.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,986.50 : 136,577.70 = 55,966.86 : x
  2. Step 2: Convert to fraction form
    98,986.50/136,577.70 = 55,966.86/x
  3. Step 3: Cross multiply
    98,986.50x = 136,577.70 × 55,966.86
  4. Step 4: Simplify right side
    98,986.50x = 7,643,825,015.02
  5. Step 5: Solve for x
    x = 7,643,825,015.02/98,986.50
  6. Step 6: Final answer
    x = 77,220.88

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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.