Home / 84,775.72-116,999.64-54,176.70

Finding the Fourth Proportional to 84,775.72, 116,999.64 and 54,176.70

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Solution

The fourth proportional to 84,775.72, 116,999.64 and 54,176.70 is: 74,769.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,775.72 : 116,999.64 = 54,176.70 : x
  2. Step 2: Convert to fraction form
    84,775.72/116,999.64 = 54,176.70/x
  3. Step 3: Cross multiply
    84,775.72x = 116,999.64 × 54,176.70
  4. Step 4: Simplify right side
    84,775.72x = 6,338,654,396.39
  5. Step 5: Solve for x
    x = 6,338,654,396.39/84,775.72
  6. Step 6: Final answer
    x = 74,769.69

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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.