Home / 43,134.52-64,679.76-19,740.90

Finding the Fourth Proportional to 43,134.52, 64,679.76 and 19,740.90

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Solution

The fourth proportional to 43,134.52, 64,679.76 and 19,740.90 is: 29,601.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,134.52 : 64,679.76 = 19,740.90 : x
  2. Step 2: Convert to fraction form
    43,134.52/64,679.76 = 19,740.90/x
  3. Step 3: Cross multiply
    43,134.52x = 64,679.76 × 19,740.90
  4. Step 4: Simplify right side
    43,134.52x = 1,276,836,674.18
  5. Step 5: Solve for x
    x = 1,276,836,674.18/43,134.52
  6. Step 6: Final answer
    x = 29,601.27

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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.