Home / 64,966.11-89,647.39-36,281.78

Finding the Fourth Proportional to 64,966.11, 89,647.39 and 36,281.78

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Solution

The fourth proportional to 64,966.11, 89,647.39 and 36,281.78 is: 50,065.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,966.11 : 89,647.39 = 36,281.78 : x
  2. Step 2: Convert to fraction form
    64,966.11/89,647.39 = 36,281.78/x
  3. Step 3: Cross multiply
    64,966.11x = 89,647.39 × 36,281.78
  4. Step 4: Simplify right side
    64,966.11x = 3,252,566,801.35
  5. Step 5: Solve for x
    x = 3,252,566,801.35/64,966.11
  6. Step 6: Final answer
    x = 50,065.60

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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.