Home / 57,950.01-86,931.90-20,502.36

Finding the Fourth Proportional to 57,950.01, 86,931.90 and 20,502.36

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Solution

The fourth proportional to 57,950.01, 86,931.90 and 20,502.36 is: 30,755.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,950.01 : 86,931.90 = 20,502.36 : x
  2. Step 2: Convert to fraction form
    57,950.01/86,931.90 = 20,502.36/x
  3. Step 3: Cross multiply
    57,950.01x = 86,931.90 × 20,502.36
  4. Step 4: Simplify right side
    57,950.01x = 1,782,309,109.28
  5. Step 5: Solve for x
    x = 1,782,309,109.28/57,950.01
  6. Step 6: Final answer
    x = 30,755.98

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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.