Home / 43,097.60-64,603.20-19,740.80

Finding the Fourth Proportional to 43,097.60, 64,603.20 and 19,740.80

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Solution

The fourth proportional to 43,097.60, 64,603.20 and 19,740.80 is: 29,591.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,097.60 : 64,603.20 = 19,740.80 : x
  2. Step 2: Convert to fraction form
    43,097.60/64,603.20 = 19,740.80/x
  3. Step 3: Cross multiply
    43,097.60x = 64,603.20 × 19,740.80
  4. Step 4: Simplify right side
    43,097.60x = 1,275,318,850.56
  5. Step 5: Solve for x
    x = 1,275,318,850.56/43,097.60
  6. Step 6: Final answer
    x = 29,591.41

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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.