Home / 74,926.16-103,396.38-40,934.78

Finding the Fourth Proportional to 74,926.16, 103,396.38 and 40,934.78

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Solution

The fourth proportional to 74,926.16, 103,396.38 and 40,934.78 is: 56,489.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,926.16 : 103,396.38 = 40,934.78 : x
  2. Step 2: Convert to fraction form
    74,926.16/103,396.38 = 40,934.78/x
  3. Step 3: Cross multiply
    74,926.16x = 103,396.38 × 40,934.78
  4. Step 4: Simplify right side
    74,926.16x = 4,232,508,068.10
  5. Step 5: Solve for x
    x = 4,232,508,068.10/74,926.16
  6. Step 6: Final answer
    x = 56,489.06

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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.