Home / 46,385.88-69,579.22-13,105.20

Finding the Fourth Proportional to 46,385.88, 69,579.22 and 13,105.20

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Solution

The fourth proportional to 46,385.88, 69,579.22 and 13,105.20 is: 19,657.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,385.88 : 69,579.22 = 13,105.20 : x
  2. Step 2: Convert to fraction form
    46,385.88/69,579.22 = 13,105.20/x
  3. Step 3: Cross multiply
    46,385.88x = 69,579.22 × 13,105.20
  4. Step 4: Simplify right side
    46,385.88x = 911,849,593.94
  5. Step 5: Solve for x
    x = 911,849,593.94/46,385.88
  6. Step 6: Final answer
    x = 19,657.91

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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.