Home / 285,175.26-427,729.95-74,829.60

Finding the Fourth Proportional to 285,175.26, 427,729.95 and 74,829.60

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Solution

The fourth proportional to 285,175.26, 427,729.95 and 74,829.60 is: 112,235.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,175.26 : 427,729.95 = 74,829.60 : x
  2. Step 2: Convert to fraction form
    285,175.26/427,729.95 = 74,829.60/x
  3. Step 3: Cross multiply
    285,175.26x = 427,729.95 × 74,829.60
  4. Step 4: Simplify right side
    285,175.26x = 32,006,861,066.52
  5. Step 5: Solve for x
    x = 32,006,861,066.52/285,175.26
  6. Step 6: Final answer
    x = 112,235.76

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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.