Home / 61,122.10-84,366.42-39,904.54

Finding the Fourth Proportional to 61,122.10, 84,366.42 and 39,904.54

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Solution

The fourth proportional to 61,122.10, 84,366.42 and 39,904.54 is: 55,079.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,122.10 : 84,366.42 = 39,904.54 : x
  2. Step 2: Convert to fraction form
    61,122.10/84,366.42 = 39,904.54/x
  3. Step 3: Cross multiply
    61,122.10x = 84,366.42 × 39,904.54
  4. Step 4: Simplify right side
    61,122.10x = 3,366,603,181.55
  5. Step 5: Solve for x
    x = 3,366,603,181.55/61,122.10
  6. Step 6: Final answer
    x = 55,079.97

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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.