Home / 67,915.14-101,979.30-57,521.40

Finding the Fourth Proportional to 67,915.14, 101,979.30 and 57,521.40

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Solution

The fourth proportional to 67,915.14, 101,979.30 and 57,521.40 is: 86,372.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,915.14 : 101,979.30 = 57,521.40 : x
  2. Step 2: Convert to fraction form
    67,915.14/101,979.30 = 57,521.40/x
  3. Step 3: Cross multiply
    67,915.14x = 101,979.30 × 57,521.40
  4. Step 4: Simplify right side
    67,915.14x = 5,865,992,107.02
  5. Step 5: Solve for x
    x = 5,865,992,107.02/67,915.14
  6. Step 6: Final answer
    x = 86,372.38

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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.