Home / 45,156.09-67,733.62-13,564.78

Finding the Fourth Proportional to 45,156.09, 67,733.62 and 13,564.78

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Solution

The fourth proportional to 45,156.09, 67,733.62 and 13,564.78 is: 20,347.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,156.09 : 67,733.62 = 13,564.78 : x
  2. Step 2: Convert to fraction form
    45,156.09/67,733.62 = 13,564.78/x
  3. Step 3: Cross multiply
    45,156.09x = 67,733.62 × 13,564.78
  4. Step 4: Simplify right side
    45,156.09x = 918,791,653.90
  5. Step 5: Solve for x
    x = 918,791,653.90/45,156.09
  6. Step 6: Final answer
    x = 20,347.02

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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.