Home / 84,721.55-126,999.69-40,336.38

Finding the Fourth Proportional to 84,721.55, 126,999.69 and 40,336.38

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Solution

The fourth proportional to 84,721.55, 126,999.69 and 40,336.38 is: 60,465.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,721.55 : 126,999.69 = 40,336.38 : x
  2. Step 2: Convert to fraction form
    84,721.55/126,999.69 = 40,336.38/x
  3. Step 3: Cross multiply
    84,721.55x = 126,999.69 × 40,336.38
  4. Step 4: Simplify right side
    84,721.55x = 5,122,707,755.72
  5. Step 5: Solve for x
    x = 5,122,707,755.72/84,721.55
  6. Step 6: Final answer
    x = 60,465.23

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1.5x scale

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.