Home / 85,716.45-118,287.41-47,992.05

Finding the Fourth Proportional to 85,716.45, 118,287.41 and 47,992.05

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Solution

The fourth proportional to 85,716.45, 118,287.41 and 47,992.05 is: 66,228.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,716.45 : 118,287.41 = 47,992.05 : x
  2. Step 2: Convert to fraction form
    85,716.45/118,287.41 = 47,992.05/x
  3. Step 3: Cross multiply
    85,716.45x = 118,287.41 × 47,992.05
  4. Step 4: Simplify right side
    85,716.45x = 5,676,855,055.13
  5. Step 5: Solve for x
    x = 5,676,855,055.13/85,716.45
  6. Step 6: Final answer
    x = 66,228.30

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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.