Home / 48,286.30-72,429.45-45,564.70

Finding the Fourth Proportional to 48,286.30, 72,429.45 and 45,564.70

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Solution

The fourth proportional to 48,286.30, 72,429.45 and 45,564.70 is: 68,347.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,286.30 : 72,429.45 = 45,564.70 : x
  2. Step 2: Convert to fraction form
    48,286.30/72,429.45 = 45,564.70/x
  3. Step 3: Cross multiply
    48,286.30x = 72,429.45 × 45,564.70
  4. Step 4: Simplify right side
    48,286.30x = 3,300,226,160.42
  5. Step 5: Solve for x
    x = 3,300,226,160.42/48,286.30
  6. Step 6: Final answer
    x = 68,347.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.