Home / 60,939.18-91,409.04-21,474.90

Finding the Fourth Proportional to 60,939.18, 91,409.04 and 21,474.90

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Solution

The fourth proportional to 60,939.18, 91,409.04 and 21,474.90 is: 32,212.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,939.18 : 91,409.04 = 21,474.90 : x
  2. Step 2: Convert to fraction form
    60,939.18/91,409.04 = 21,474.90/x
  3. Step 3: Cross multiply
    60,939.18x = 91,409.04 × 21,474.90
  4. Step 4: Simplify right side
    60,939.18x = 1,962,999,993.10
  5. Step 5: Solve for x
    x = 1,962,999,993.10/60,939.18
  6. Step 6: Final answer
    x = 32,212.45

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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.