Home / 71,548.20-107,360.70-29,999.40

Finding the Fourth Proportional to 71,548.20, 107,360.70 and 29,999.40

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Solution

The fourth proportional to 71,548.20, 107,360.70 and 29,999.40 is: 45,015.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,548.20 : 107,360.70 = 29,999.40 : x
  2. Step 2: Convert to fraction form
    71,548.20/107,360.70 = 29,999.40/x
  3. Step 3: Cross multiply
    71,548.20x = 107,360.70 × 29,999.40
  4. Step 4: Simplify right side
    71,548.20x = 3,220,756,583.58
  5. Step 5: Solve for x
    x = 3,220,756,583.58/71,548.20
  6. Step 6: Final answer
    x = 45,015.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.