Home / 84,895.76-117,111.88-57,662.16

Finding the Fourth Proportional to 84,895.76, 117,111.88 and 57,662.16

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Solution

The fourth proportional to 84,895.76, 117,111.88 and 57,662.16 is: 79,543.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,895.76 : 117,111.88 = 57,662.16 : x
  2. Step 2: Convert to fraction form
    84,895.76/117,111.88 = 57,662.16/x
  3. Step 3: Cross multiply
    84,895.76x = 117,111.88 × 57,662.16
  4. Step 4: Simplify right side
    84,895.76x = 6,752,923,962.46
  5. Step 5: Solve for x
    x = 6,752,923,962.46/84,895.76
  6. Step 6: Final answer
    x = 79,543.71

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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.