Home / 42,770.36-64,159.13-11,180.36

Finding the Fourth Proportional to 42,770.36, 64,159.13 and 11,180.36

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Solution

The fourth proportional to 42,770.36, 64,159.13 and 11,180.36 is: 16,771.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,770.36 : 64,159.13 = 11,180.36 : x
  2. Step 2: Convert to fraction form
    42,770.36/64,159.13 = 11,180.36/x
  3. Step 3: Cross multiply
    42,770.36x = 64,159.13 × 11,180.36
  4. Step 4: Simplify right side
    42,770.36x = 717,322,359.04
  5. Step 5: Solve for x
    x = 717,322,359.04/42,770.36
  6. Step 6: Final answer
    x = 16,771.48

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1.5x scale

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.