Home / 65,175.12-89,942.94-42,528.60

Finding the Fourth Proportional to 65,175.12, 89,942.94 and 42,528.60

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Solution

The fourth proportional to 65,175.12, 89,942.94 and 42,528.60 is: 58,690.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,175.12 : 89,942.94 = 42,528.60 : x
  2. Step 2: Convert to fraction form
    65,175.12/89,942.94 = 42,528.60/x
  3. Step 3: Cross multiply
    65,175.12x = 89,942.94 × 42,528.60
  4. Step 4: Simplify right side
    65,175.12x = 3,825,147,318.08
  5. Step 5: Solve for x
    x = 3,825,147,318.08/65,175.12
  6. Step 6: Final answer
    x = 58,690.30

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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.