Home / 85,666.59-118,220.04-47,940.84

Finding the Fourth Proportional to 85,666.59, 118,220.04 and 47,940.84

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Solution

The fourth proportional to 85,666.59, 118,220.04 and 47,940.84 is: 66,158.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,666.59 : 118,220.04 = 47,940.84 : x
  2. Step 2: Convert to fraction form
    85,666.59/118,220.04 = 47,940.84/x
  3. Step 3: Cross multiply
    85,666.59x = 118,220.04 × 47,940.84
  4. Step 4: Simplify right side
    85,666.59x = 5,667,568,022.43
  5. Step 5: Solve for x
    x = 5,667,568,022.43/85,666.59
  6. Step 6: Final answer
    x = 66,158.44

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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.