Home / 84,187.78-116,181.54-45,949.76

Finding the Fourth Proportional to 84,187.78, 116,181.54 and 45,949.76

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Solution

The fourth proportional to 84,187.78, 116,181.54 and 45,949.76 is: 63,411.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,187.78 : 116,181.54 = 45,949.76 : x
  2. Step 2: Convert to fraction form
    84,187.78/116,181.54 = 45,949.76/x
  3. Step 3: Cross multiply
    84,187.78x = 116,181.54 × 45,949.76
  4. Step 4: Simplify right side
    84,187.78x = 5,338,513,879.43
  5. Step 5: Solve for x
    x = 5,338,513,879.43/84,187.78
  6. Step 6: Final answer
    x = 63,411.98

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1.5x scale

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.