Home / 85,739.70-118,325.07-51,747.69

Finding the Fourth Proportional to 85,739.70, 118,325.07 and 51,747.69

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Solution

The fourth proportional to 85,739.70, 118,325.07 and 51,747.69 is: 71,414.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,739.70 : 118,325.07 = 51,747.69 : x
  2. Step 2: Convert to fraction form
    85,739.70/118,325.07 = 51,747.69/x
  3. Step 3: Cross multiply
    85,739.70x = 118,325.07 × 51,747.69
  4. Step 4: Simplify right side
    85,739.70x = 6,123,049,041.59
  5. Step 5: Solve for x
    x = 6,123,049,041.59/85,739.70
  6. Step 6: Final answer
    x = 71,414.40

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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.