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Finding the Fourth Proportional to 63,670, 87,856.68 and 35,372.08

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Solution

The fourth proportional to 63,670, 87,856.68 and 35,372.08 is: 48,809.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,670 : 87,856.68 = 35,372.08 : x
  2. Step 2: Convert to fraction form
    63,670/87,856.68 = 35,372.08/x
  3. Step 3: Cross multiply
    63,670x = 87,856.68 × 35,372.08
  4. Step 4: Simplify right side
    63,670x = 3,107,673,513.49
  5. Step 5: Solve for x
    x = 3,107,673,513.49/63,670
  6. Step 6: Final answer
    x = 48,809.07

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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.