Home / 83,811.09-115,661.28-45,572.82

Finding the Fourth Proportional to 83,811.09, 115,661.28 and 45,572.82

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Solution

The fourth proportional to 83,811.09, 115,661.28 and 45,572.82 is: 62,891.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,811.09 : 115,661.28 = 45,572.82 : x
  2. Step 2: Convert to fraction form
    83,811.09/115,661.28 = 45,572.82/x
  3. Step 3: Cross multiply
    83,811.09x = 115,661.28 × 45,572.82
  4. Step 4: Simplify right side
    83,811.09x = 5,271,010,694.41
  5. Step 5: Solve for x
    x = 5,271,010,694.41/83,811.09
  6. Step 6: Final answer
    x = 62,891.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.