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Finding the Fourth Proportional to 61,122.57, 84,354 and 35,976.93

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Solution

The fourth proportional to 61,122.57, 84,354 and 35,976.93 is: 49,651.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,122.57 : 84,354 = 35,976.93 : x
  2. Step 2: Convert to fraction form
    61,122.57/84,354 = 35,976.93/x
  3. Step 3: Cross multiply
    61,122.57x = 84,354 × 35,976.93
  4. Step 4: Simplify right side
    61,122.57x = 3,034,797,953.22
  5. Step 5: Solve for x
    x = 3,034,797,953.22/61,122.57
  6. Step 6: Final answer
    x = 49,651.02

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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.