Home / 43,129.89-64,710.63-18,176.22

Finding the Fourth Proportional to 43,129.89, 64,710.63 and 18,176.22

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Solution

The fourth proportional to 43,129.89, 64,710.63 and 18,176.22 is: 27,270.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,129.89 : 64,710.63 = 18,176.22 : x
  2. Step 2: Convert to fraction form
    43,129.89/64,710.63 = 18,176.22/x
  3. Step 3: Cross multiply
    43,129.89x = 64,710.63 × 18,176.22
  4. Step 4: Simplify right side
    43,129.89x = 1,176,194,647.22
  5. Step 5: Solve for x
    x = 1,176,194,647.22/43,129.89
  6. Step 6: Final answer
    x = 27,270.99

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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.