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Finding the Fourth Proportional to 61,131.69, 84,313.85 and 40,982.13

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Solution

The fourth proportional to 61,131.69, 84,313.85 and 40,982.13 is: 56,523.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,131.69 : 84,313.85 = 40,982.13 : x
  2. Step 2: Convert to fraction form
    61,131.69/84,313.85 = 40,982.13/x
  3. Step 3: Cross multiply
    61,131.69x = 84,313.85 × 40,982.13
  4. Step 4: Simplify right side
    61,131.69x = 3,455,360,956.59
  5. Step 5: Solve for x
    x = 3,455,360,956.59/61,131.69
  6. Step 6: Final answer
    x = 56,523.24

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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.