Home / 43,272.07-64,905.76-11,681.69

Finding the Fourth Proportional to 43,272.07, 64,905.76 and 11,681.69

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Solution

The fourth proportional to 43,272.07, 64,905.76 and 11,681.69 is: 17,521.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,272.07 : 64,905.76 = 11,681.69 : x
  2. Step 2: Convert to fraction form
    43,272.07/64,905.76 = 11,681.69/x
  3. Step 3: Cross multiply
    43,272.07x = 64,905.76 × 11,681.69
  4. Step 4: Simplify right side
    43,272.07x = 758,209,139.54
  5. Step 5: Solve for x
    x = 758,209,139.54/43,272.07
  6. Step 6: Final answer
    x = 17,521.90

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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.