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Finding the Fourth Proportional to 60,393.63, 90,606.50 and 20,950.68

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Solution

The fourth proportional to 60,393.63, 90,606.50 and 20,950.68 is: 31,431.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,393.63 : 90,606.50 = 20,950.68 : x
  2. Step 2: Convert to fraction form
    60,393.63/90,606.50 = 20,950.68/x
  3. Step 3: Cross multiply
    60,393.63x = 90,606.50 × 20,950.68
  4. Step 4: Simplify right side
    60,393.63x = 1,898,267,787.42
  5. Step 5: Solve for x
    x = 1,898,267,787.42/60,393.63
  6. Step 6: Final answer
    x = 31,431.59

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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.