Home / 84,583.15-116,458.39-71,811.07

Finding the Fourth Proportional to 84,583.15, 116,458.39 and 71,811.07

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Solution

The fourth proportional to 84,583.15, 116,458.39 and 71,811.07 is: 98,873.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,583.15 : 116,458.39 = 71,811.07 : x
  2. Step 2: Convert to fraction form
    84,583.15/116,458.39 = 71,811.07/x
  3. Step 3: Cross multiply
    84,583.15x = 116,458.39 × 71,811.07
  4. Step 4: Simplify right side
    84,583.15x = 8,363,001,395.00
  5. Step 5: Solve for x
    x = 8,363,001,395.00/84,583.15
  6. Step 6: Final answer
    x = 98,873.14

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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.