Home / 74,712.40-103,120.68-46,439.44

Finding the Fourth Proportional to 74,712.40, 103,120.68 and 46,439.44

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Solution

The fourth proportional to 74,712.40, 103,120.68 and 46,439.44 is: 64,097.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,712.40 : 103,120.68 = 46,439.44 : x
  2. Step 2: Convert to fraction form
    74,712.40/103,120.68 = 46,439.44/x
  3. Step 3: Cross multiply
    74,712.40x = 103,120.68 × 46,439.44
  4. Step 4: Simplify right side
    74,712.40x = 4,788,866,631.62
  5. Step 5: Solve for x
    x = 4,788,866,631.62/74,712.40
  6. Step 6: Final answer
    x = 64,097.35

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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.