Home / 43,135.87-64,703.16-13,555.48

Finding the Fourth Proportional to 43,135.87, 64,703.16 and 13,555.48

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Solution

The fourth proportional to 43,135.87, 64,703.16 and 13,555.48 is: 20,333.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,135.87 : 64,703.16 = 13,555.48 : x
  2. Step 2: Convert to fraction form
    43,135.87/64,703.16 = 13,555.48/x
  3. Step 3: Cross multiply
    43,135.87x = 64,703.16 × 13,555.48
  4. Step 4: Simplify right side
    43,135.87x = 877,082,391.32
  5. Step 5: Solve for x
    x = 877,082,391.32/43,135.87
  6. Step 6: Final answer
    x = 20,333.02

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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.