Home / 84,811.80-117,046.26-56,081.54

Finding the Fourth Proportional to 84,811.80, 117,046.26 and 56,081.54

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Solution

The fourth proportional to 84,811.80, 117,046.26 and 56,081.54 is: 77,396.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,811.80 : 117,046.26 = 56,081.54 : x
  2. Step 2: Convert to fraction form
    84,811.80/117,046.26 = 56,081.54/x
  3. Step 3: Cross multiply
    84,811.80x = 117,046.26 × 56,081.54
  4. Step 4: Simplify right side
    84,811.80x = 6,564,133,926.81
  5. Step 5: Solve for x
    x = 6,564,133,926.81/84,811.80
  6. Step 6: Final answer
    x = 77,396.47

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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.