Home / 55,172.67-82,800.45-40,419.60

Finding the Fourth Proportional to 55,172.67, 82,800.45 and 40,419.60

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Solution

The fourth proportional to 55,172.67, 82,800.45 and 40,419.60 is: 60,659.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,172.67 : 82,800.45 = 40,419.60 : x
  2. Step 2: Convert to fraction form
    55,172.67/82,800.45 = 40,419.60/x
  3. Step 3: Cross multiply
    55,172.67x = 82,800.45 × 40,419.60
  4. Step 4: Simplify right side
    55,172.67x = 3,346,761,068.82
  5. Step 5: Solve for x
    x = 3,346,761,068.82/55,172.67
  6. Step 6: Final answer
    x = 60,659.76

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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.