Home / 56,905.20-85,332.20-21,833.20

Finding the Fourth Proportional to 56,905.20, 85,332.20 and 21,833.20

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Solution

The fourth proportional to 56,905.20, 85,332.20 and 21,833.20 is: 32,739.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,905.20 : 85,332.20 = 21,833.20 : x
  2. Step 2: Convert to fraction form
    56,905.20/85,332.20 = 21,833.20/x
  3. Step 3: Cross multiply
    56,905.20x = 85,332.20 × 21,833.20
  4. Step 4: Simplify right side
    56,905.20x = 1,863,074,989.04
  5. Step 5: Solve for x
    x = 1,863,074,989.04/56,905.20
  6. Step 6: Final answer
    x = 32,739.98

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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.