Home / 69,965.19-104,947.29-20,045.48

Finding the Fourth Proportional to 69,965.19, 104,947.29 and 20,045.48

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Solution

The fourth proportional to 69,965.19, 104,947.29 and 20,045.48 is: 30,068.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,965.19 : 104,947.29 = 20,045.48 : x
  2. Step 2: Convert to fraction form
    69,965.19/104,947.29 = 20,045.48/x
  3. Step 3: Cross multiply
    69,965.19x = 104,947.29 × 20,045.48
  4. Step 4: Simplify right side
    69,965.19x = 2,103,718,278.01
  5. Step 5: Solve for x
    x = 2,103,718,278.01/69,965.19
  6. Step 6: Final answer
    x = 30,068.07

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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.