Home / 74,799.10-103,257.12-64,549.36

Finding the Fourth Proportional to 74,799.10, 103,257.12 and 64,549.36

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Solution

The fourth proportional to 74,799.10, 103,257.12 and 64,549.36 is: 89,107.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,799.10 : 103,257.12 = 64,549.36 : x
  2. Step 2: Convert to fraction form
    74,799.10/103,257.12 = 64,549.36/x
  3. Step 3: Cross multiply
    74,799.10x = 103,257.12 × 64,549.36
  4. Step 4: Simplify right side
    74,799.10x = 6,665,181,011.44
  5. Step 5: Solve for x
    x = 6,665,181,011.44/74,799.10
  6. Step 6: Final answer
    x = 89,107.77

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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.