Home / 84,308.29-116,210.31-57,075.79

Finding the Fourth Proportional to 84,308.29, 116,210.31 and 57,075.79

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Solution

The fourth proportional to 84,308.29, 116,210.31 and 57,075.79 is: 78,673.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,308.29 : 116,210.31 = 57,075.79 : x
  2. Step 2: Convert to fraction form
    84,308.29/116,210.31 = 57,075.79/x
  3. Step 3: Cross multiply
    84,308.29x = 116,210.31 × 57,075.79
  4. Step 4: Simplify right side
    84,308.29x = 6,632,795,249.39
  5. Step 5: Solve for x
    x = 6,632,795,249.39/84,308.29
  6. Step 6: Final answer
    x = 78,673.11

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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.