Home / 43,308.48-64,955.40-12,136.56

Finding the Fourth Proportional to 43,308.48, 64,955.40 and 12,136.56

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Solution

The fourth proportional to 43,308.48, 64,955.40 and 12,136.56 is: 18,202.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,308.48 : 64,955.40 = 12,136.56 : x
  2. Step 2: Convert to fraction form
    43,308.48/64,955.40 = 12,136.56/x
  3. Step 3: Cross multiply
    43,308.48x = 64,955.40 × 12,136.56
  4. Step 4: Simplify right side
    43,308.48x = 788,335,109.42
  5. Step 5: Solve for x
    x = 788,335,109.42/43,308.48
  6. Step 6: Final answer
    x = 18,202.79

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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.