Home / 46,355.20-69,565.20-20,078.80

Finding the Fourth Proportional to 46,355.20, 69,565.20 and 20,078.80

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Solution

The fourth proportional to 46,355.20, 69,565.20 and 20,078.80 is: 30,132.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,355.20 : 69,565.20 = 20,078.80 : x
  2. Step 2: Convert to fraction form
    46,355.20/69,565.20 = 20,078.80/x
  3. Step 3: Cross multiply
    46,355.20x = 69,565.20 × 20,078.80
  4. Step 4: Simplify right side
    46,355.20x = 1,396,785,737.76
  5. Step 5: Solve for x
    x = 1,396,785,737.76/46,355.20
  6. Step 6: Final answer
    x = 30,132.23

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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.