Home / 76,133.79-114,192.49-19,979.53

Finding the Fourth Proportional to 76,133.79, 114,192.49 and 19,979.53

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Solution

The fourth proportional to 76,133.79, 114,192.49 and 19,979.53 is: 29,967.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,133.79 : 114,192.49 = 19,979.53 : x
  2. Step 2: Convert to fraction form
    76,133.79/114,192.49 = 19,979.53/x
  3. Step 3: Cross multiply
    76,133.79x = 114,192.49 × 19,979.53
  4. Step 4: Simplify right side
    76,133.79x = 2,281,512,372.52
  5. Step 5: Solve for x
    x = 2,281,512,372.52/76,133.79
  6. Step 6: Final answer
    x = 29,967.14

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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.