Home / 61,155.27-91,613.53-42,135.03

Finding the Fourth Proportional to 61,155.27, 91,613.53 and 42,135.03

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Solution

The fourth proportional to 61,155.27, 91,613.53 and 42,135.03 is: 63,120.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,155.27 : 91,613.53 = 42,135.03 : x
  2. Step 2: Convert to fraction form
    61,155.27/91,613.53 = 42,135.03/x
  3. Step 3: Cross multiply
    61,155.27x = 91,613.53 × 42,135.03
  4. Step 4: Simplify right side
    61,155.27x = 3,860,138,650.62
  5. Step 5: Solve for x
    x = 3,860,138,650.62/61,155.27
  6. Step 6: Final answer
    x = 63,120.30

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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.