Home / 67,968.74-101,953.10-21,225.62

Finding the Fourth Proportional to 67,968.74, 101,953.10 and 21,225.62

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Solution

The fourth proportional to 67,968.74, 101,953.10 and 21,225.62 is: 31,838.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,968.74 : 101,953.10 = 21,225.62 : x
  2. Step 2: Convert to fraction form
    67,968.74/101,953.10 = 21,225.62/x
  3. Step 3: Cross multiply
    67,968.74x = 101,953.10 × 21,225.62
  4. Step 4: Simplify right side
    67,968.74x = 2,164,017,758.42
  5. Step 5: Solve for x
    x = 2,164,017,758.42/67,968.74
  6. Step 6: Final answer
    x = 31,838.43

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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.