Home / 55,935.60-83,903.40-53,785.20

Finding the Fourth Proportional to 55,935.60, 83,903.40 and 53,785.20

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Solution

The fourth proportional to 55,935.60, 83,903.40 and 53,785.20 is: 80,677.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,935.60 : 83,903.40 = 53,785.20 : x
  2. Step 2: Convert to fraction form
    55,935.60/83,903.40 = 53,785.20/x
  3. Step 3: Cross multiply
    55,935.60x = 83,903.40 × 53,785.20
  4. Step 4: Simplify right side
    55,935.60x = 4,512,761,149.68
  5. Step 5: Solve for x
    x = 4,512,761,149.68/55,935.60
  6. Step 6: Final answer
    x = 80,677.80

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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.