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Finding the Fourth Proportional to 85,130.99, 127,703.83 and 21,950.56

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Solution

The fourth proportional to 85,130.99, 127,703.83 and 21,950.56 is: 32,927.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,130.99 : 127,703.83 = 21,950.56 : x
  2. Step 2: Convert to fraction form
    85,130.99/127,703.83 = 21,950.56/x
  3. Step 3: Cross multiply
    85,130.99x = 127,703.83 × 21,950.56
  4. Step 4: Simplify right side
    85,130.99x = 2,803,170,582.64
  5. Step 5: Solve for x
    x = 2,803,170,582.64/85,130.99
  6. Step 6: Final answer
    x = 32,927.73

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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.