Home / 43,071.93-64,602.90-11,909.61

Finding the Fourth Proportional to 43,071.93, 64,602.90 and 11,909.61

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Solution

The fourth proportional to 43,071.93, 64,602.90 and 11,909.61 is: 17,863.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,071.93 : 64,602.90 = 11,909.61 : x
  2. Step 2: Convert to fraction form
    43,071.93/64,602.90 = 11,909.61/x
  3. Step 3: Cross multiply
    43,071.93x = 64,602.90 × 11,909.61
  4. Step 4: Simplify right side
    43,071.93x = 769,395,343.87
  5. Step 5: Solve for x
    x = 769,395,343.87/43,071.93
  6. Step 6: Final answer
    x = 17,863.03

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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.