Home / 76,658.04-114,986.52-21,254.04

Finding the Fourth Proportional to 76,658.04, 114,986.52 and 21,254.04

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Solution

The fourth proportional to 76,658.04, 114,986.52 and 21,254.04 is: 31,880.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,658.04 : 114,986.52 = 21,254.04 : x
  2. Step 2: Convert to fraction form
    76,658.04/114,986.52 = 21,254.04/x
  3. Step 3: Cross multiply
    76,658.04x = 114,986.52 × 21,254.04
  4. Step 4: Simplify right side
    76,658.04x = 2,443,928,095.54
  5. Step 5: Solve for x
    x = 2,443,928,095.54/76,658.04
  6. Step 6: Final answer
    x = 31,880.91

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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.