Home / 98,769.75-136,303.08-57,958.28

Finding the Fourth Proportional to 98,769.75, 136,303.08 and 57,958.28

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Solution

The fourth proportional to 98,769.75, 136,303.08 and 57,958.28 is: 79,982.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,769.75 : 136,303.08 = 57,958.28 : x
  2. Step 2: Convert to fraction form
    98,769.75/136,303.08 = 57,958.28/x
  3. Step 3: Cross multiply
    98,769.75x = 136,303.08 × 57,958.28
  4. Step 4: Simplify right side
    98,769.75x = 7,899,891,687.78
  5. Step 5: Solve for x
    x = 7,899,891,687.78/98,769.75
  6. Step 6: Final answer
    x = 79,982.91

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1.5x scale

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.