Home / 85,815.27-118,421.87-48,087.09

Finding the Fourth Proportional to 85,815.27, 118,421.87 and 48,087.09

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Solution

The fourth proportional to 85,815.27, 118,421.87 and 48,087.09 is: 66,358.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,815.27 : 118,421.87 = 48,087.09 : x
  2. Step 2: Convert to fraction form
    85,815.27/118,421.87 = 48,087.09/x
  3. Step 3: Cross multiply
    85,815.27x = 118,421.87 × 48,087.09
  4. Step 4: Simplify right side
    85,815.27x = 5,694,562,880.22
  5. Step 5: Solve for x
    x = 5,694,562,880.22/85,815.27
  6. Step 6: Final answer
    x = 66,358.39

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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.