Home / 52,471.04-78,718.24-19,190.36

Finding the Fourth Proportional to 52,471.04, 78,718.24 and 19,190.36

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Solution

The fourth proportional to 52,471.04, 78,718.24 and 19,190.36 is: 28,789.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,471.04 : 78,718.24 = 19,190.36 : x
  2. Step 2: Convert to fraction form
    52,471.04/78,718.24 = 19,190.36/x
  3. Step 3: Cross multiply
    52,471.04x = 78,718.24 × 19,190.36
  4. Step 4: Simplify right side
    52,471.04x = 1,510,631,364.17
  5. Step 5: Solve for x
    x = 1,510,631,364.17/52,471.04
  6. Step 6: Final answer
    x = 28,789.81

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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.