Home / 53,145.61-79,703.28-18,084.49

Finding the Fourth Proportional to 53,145.61, 79,703.28 and 18,084.49

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Solution

The fourth proportional to 53,145.61, 79,703.28 and 18,084.49 is: 27,121.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,145.61 : 79,703.28 = 18,084.49 : x
  2. Step 2: Convert to fraction form
    53,145.61/79,703.28 = 18,084.49/x
  3. Step 3: Cross multiply
    53,145.61x = 79,703.28 × 18,084.49
  4. Step 4: Simplify right side
    53,145.61x = 1,441,393,170.13
  5. Step 5: Solve for x
    x = 1,441,393,170.13/53,145.61
  6. Step 6: Final answer
    x = 27,121.58

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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.