Home / 43,161.30-64,742.10-11,996.52

Finding the Fourth Proportional to 43,161.30, 64,742.10 and 11,996.52

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Solution

The fourth proportional to 43,161.30, 64,742.10 and 11,996.52 is: 17,994.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,161.30 : 64,742.10 = 11,996.52 : x
  2. Step 2: Convert to fraction form
    43,161.30/64,742.10 = 11,996.52/x
  3. Step 3: Cross multiply
    43,161.30x = 64,742.10 × 11,996.52
  4. Step 4: Simplify right side
    43,161.30x = 776,679,897.49
  5. Step 5: Solve for x
    x = 776,679,897.49/43,161.30
  6. Step 6: Final answer
    x = 17,994.82

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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.