Home / 74,402.64-102,674.52-42,579.36

Finding the Fourth Proportional to 74,402.64, 102,674.52 and 42,579.36

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Solution

The fourth proportional to 74,402.64, 102,674.52 and 42,579.36 is: 58,758.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,402.64 : 102,674.52 = 42,579.36 : x
  2. Step 2: Convert to fraction form
    74,402.64/102,674.52 = 42,579.36/x
  3. Step 3: Cross multiply
    74,402.64x = 102,674.52 × 42,579.36
  4. Step 4: Simplify right side
    74,402.64x = 4,371,815,349.91
  5. Step 5: Solve for x
    x = 4,371,815,349.91/74,402.64
  6. Step 6: Final answer
    x = 58,758.87

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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.