Home / 85,639.39-118,174.36-51,177.29

Finding the Fourth Proportional to 85,639.39, 118,174.36 and 51,177.29

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Solution

The fourth proportional to 85,639.39, 118,174.36 and 51,177.29 is: 70,619.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,639.39 : 118,174.36 = 51,177.29 : x
  2. Step 2: Convert to fraction form
    85,639.39/118,174.36 = 51,177.29/x
  3. Step 3: Cross multiply
    85,639.39x = 118,174.36 × 51,177.29
  4. Step 4: Simplify right side
    85,639.39x = 6,047,843,367.97
  5. Step 5: Solve for x
    x = 6,047,843,367.97/85,639.39
  6. Step 6: Final answer
    x = 70,619.88

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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.