Home / 73,218.81-109,702.83-39,962.21

Finding the Fourth Proportional to 73,218.81, 109,702.83 and 39,962.21

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Solution

The fourth proportional to 73,218.81, 109,702.83 and 39,962.21 is: 59,874.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,218.81 : 109,702.83 = 39,962.21 : x
  2. Step 2: Convert to fraction form
    73,218.81/109,702.83 = 39,962.21/x
  3. Step 3: Cross multiply
    73,218.81x = 109,702.83 × 39,962.21
  4. Step 4: Simplify right side
    73,218.81x = 4,383,967,748.48
  5. Step 5: Solve for x
    x = 4,383,967,748.48/73,218.81
  6. Step 6: Final answer
    x = 59,874.89

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1.5x scale

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.