Home / 57,923.60-86,895.68-20,505.36

Finding the Fourth Proportional to 57,923.60, 86,895.68 and 20,505.36

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Solution

The fourth proportional to 57,923.60, 86,895.68 and 20,505.36 is: 30,761.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,923.60 : 86,895.68 = 20,505.36 : x
  2. Step 2: Convert to fraction form
    57,923.60/86,895.68 = 20,505.36/x
  3. Step 3: Cross multiply
    57,923.60x = 86,895.68 × 20,505.36
  4. Step 4: Simplify right side
    57,923.60x = 1,781,827,200.84
  5. Step 5: Solve for x
    x = 1,781,827,200.84/57,923.60
  6. Step 6: Final answer
    x = 30,761.68

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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.