Home / 69,875.28-104,816.75-19,951.47

Finding the Fourth Proportional to 69,875.28, 104,816.75 and 19,951.47

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Solution

The fourth proportional to 69,875.28, 104,816.75 and 19,951.47 is: 29,928.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,875.28 : 104,816.75 = 19,951.47 : x
  2. Step 2: Convert to fraction form
    69,875.28/104,816.75 = 19,951.47/x
  3. Step 3: Cross multiply
    69,875.28x = 104,816.75 × 19,951.47
  4. Step 4: Simplify right side
    69,875.28x = 2,091,248,143.37
  5. Step 5: Solve for x
    x = 2,091,248,143.37/69,875.28
  6. Step 6: Final answer
    x = 29,928.30

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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.