Home / 84,575.81-116,658.35-54,399.32

Finding the Fourth Proportional to 84,575.81, 116,658.35 and 54,399.32

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Solution

The fourth proportional to 84,575.81, 116,658.35 and 54,399.32 is: 75,034.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,575.81 : 116,658.35 = 54,399.32 : x
  2. Step 2: Convert to fraction form
    84,575.81/116,658.35 = 54,399.32/x
  3. Step 3: Cross multiply
    84,575.81x = 116,658.35 × 54,399.32
  4. Step 4: Simplify right side
    84,575.81x = 6,346,134,640.33
  5. Step 5: Solve for x
    x = 6,346,134,640.33/84,575.81
  6. Step 6: Final answer
    x = 75,034.87

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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.