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Finding the Fourth Proportional to 60,995.71, 91,502.31 and 18,879.49

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Solution

The fourth proportional to 60,995.71, 91,502.31 and 18,879.49 is: 28,321.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,995.71 : 91,502.31 = 18,879.49 : x
  2. Step 2: Convert to fraction form
    60,995.71/91,502.31 = 18,879.49/x
  3. Step 3: Cross multiply
    60,995.71x = 91,502.31 × 18,879.49
  4. Step 4: Simplify right side
    60,995.71x = 1,727,517,096.40
  5. Step 5: Solve for x
    x = 1,727,517,096.40/60,995.71
  6. Step 6: Final answer
    x = 28,321.94

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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.