Home / 85,991.10-118,674.09-52,000.89

Finding the Fourth Proportional to 85,991.10, 118,674.09 and 52,000.89

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Solution

The fourth proportional to 85,991.10, 118,674.09 and 52,000.89 is: 71,765.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,991.10 : 118,674.09 = 52,000.89 : x
  2. Step 2: Convert to fraction form
    85,991.10/118,674.09 = 52,000.89/x
  3. Step 3: Cross multiply
    85,991.10x = 118,674.09 × 52,000.89
  4. Step 4: Simplify right side
    85,991.10x = 6,171,158,299.94
  5. Step 5: Solve for x
    x = 6,171,158,299.94/85,991.10
  6. Step 6: Final answer
    x = 71,765.08

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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.