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Finding the Fourth Proportional to 56,912.46, 85,378.71 and 19,463.73

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Solution

The fourth proportional to 56,912.46, 85,378.71 and 19,463.73 is: 29,199.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,912.46 : 85,378.71 = 19,463.73 : x
  2. Step 2: Convert to fraction form
    56,912.46/85,378.71 = 19,463.73/x
  3. Step 3: Cross multiply
    56,912.46x = 85,378.71 × 19,463.73
  4. Step 4: Simplify right side
    56,912.46x = 1,661,788,159.19
  5. Step 5: Solve for x
    x = 1,661,788,159.19/56,912.46
  6. Step 6: Final answer
    x = 29,199.02

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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.