Home / 48,409.62-72,645.63-20,707.86

Finding the Fourth Proportional to 48,409.62, 72,645.63 and 20,707.86

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Solution

The fourth proportional to 48,409.62, 72,645.63 and 20,707.86 is: 31,075.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,409.62 : 72,645.63 = 20,707.86 : x
  2. Step 2: Convert to fraction form
    48,409.62/72,645.63 = 20,707.86/x
  3. Step 3: Cross multiply
    48,409.62x = 72,645.63 × 20,707.86
  4. Step 4: Simplify right side
    48,409.62x = 1,504,335,535.65
  5. Step 5: Solve for x
    x = 1,504,335,535.65/48,409.62
  6. Step 6: Final answer
    x = 31,075.14

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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.