Home / 69,386.71-104,089.89-21,359.28

Finding the Fourth Proportional to 69,386.71, 104,089.89 and 21,359.28

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Solution

The fourth proportional to 69,386.71, 104,089.89 and 21,359.28 is: 32,041.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,386.71 : 104,089.89 = 21,359.28 : x
  2. Step 2: Convert to fraction form
    69,386.71/104,089.89 = 21,359.28/x
  3. Step 3: Cross multiply
    69,386.71x = 104,089.89 × 21,359.28
  4. Step 4: Simplify right side
    69,386.71x = 2,223,284,738.66
  5. Step 5: Solve for x
    x = 2,223,284,738.66/69,386.71
  6. Step 6: Final answer
    x = 32,041.94

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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.