Home / 69,685.87-104,528.80-30,242.11

Finding the Fourth Proportional to 69,685.87, 104,528.80 and 30,242.11

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Solution

The fourth proportional to 69,685.87, 104,528.80 and 30,242.11 is: 45,363.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,685.87 : 104,528.80 = 30,242.11 : x
  2. Step 2: Convert to fraction form
    69,685.87/104,528.80 = 30,242.11/x
  3. Step 3: Cross multiply
    69,685.87x = 104,528.80 × 30,242.11
  4. Step 4: Simplify right side
    69,685.87x = 3,161,171,525.30
  5. Step 5: Solve for x
    x = 3,161,171,525.30/69,685.87
  6. Step 6: Final answer
    x = 45,363.16

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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.