Home / 56,165.43-77,416.01-39,818.21

Finding the Fourth Proportional to 56,165.43, 77,416.01 and 39,818.21

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Solution

The fourth proportional to 56,165.43, 77,416.01 and 39,818.21 is: 54,883.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,165.43 : 77,416.01 = 39,818.21 : x
  2. Step 2: Convert to fraction form
    56,165.43/77,416.01 = 39,818.21/x
  3. Step 3: Cross multiply
    56,165.43x = 77,416.01 × 39,818.21
  4. Step 4: Simplify right side
    56,165.43x = 3,082,567,054.14
  5. Step 5: Solve for x
    x = 3,082,567,054.14/56,165.43
  6. Step 6: Final answer
    x = 54,883.71

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Double scale
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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.