Home / 91,031.36-136,608.96-55,863.68

Finding the Fourth Proportional to 91,031.36, 136,608.96 and 55,863.68

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Solution

The fourth proportional to 91,031.36, 136,608.96 and 55,863.68 is: 83,833.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,031.36 : 136,608.96 = 55,863.68 : x
  2. Step 2: Convert to fraction form
    91,031.36/136,608.96 = 55,863.68/x
  3. Step 3: Cross multiply
    91,031.36x = 136,608.96 × 55,863.68
  4. Step 4: Simplify right side
    91,031.36x = 7,631,479,226.57
  5. Step 5: Solve for x
    x = 7,631,479,226.57/91,031.36
  6. Step 6: Final answer
    x = 83,833.52

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1.5x scale

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.