Home / 85,585.13-118,107.39-47,859.38

Finding the Fourth Proportional to 85,585.13, 118,107.39 and 47,859.38

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Solution

The fourth proportional to 85,585.13, 118,107.39 and 47,859.38 is: 66,045.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,585.13 : 118,107.39 = 47,859.38 : x
  2. Step 2: Convert to fraction form
    85,585.13/118,107.39 = 47,859.38/x
  3. Step 3: Cross multiply
    85,585.13x = 118,107.39 × 47,859.38
  4. Step 4: Simplify right side
    85,585.13x = 5,652,546,754.09
  5. Step 5: Solve for x
    x = 5,652,546,754.09/85,585.13
  6. Step 6: Final answer
    x = 66,045.90

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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.