Home / 71,009.89-97,999.50-40,801.04

Finding the Fourth Proportional to 71,009.89, 97,999.50 and 40,801.04

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Solution

The fourth proportional to 71,009.89, 97,999.50 and 40,801.04 is: 56,308.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,009.89 : 97,999.50 = 40,801.04 : x
  2. Step 2: Convert to fraction form
    71,009.89/97,999.50 = 40,801.04/x
  3. Step 3: Cross multiply
    71,009.89x = 97,999.50 × 40,801.04
  4. Step 4: Simplify right side
    71,009.89x = 3,998,481,519.48
  5. Step 5: Solve for x
    x = 3,998,481,519.48/71,009.89
  6. Step 6: Final answer
    x = 56,308.80

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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.