Home / 65,110.08-89,853.68-36,820

Finding the Fourth Proportional to 65,110.08, 89,853.68 and 36,820

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Solution

The fourth proportional to 65,110.08, 89,853.68 and 36,820 is: 50,812.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,110.08 : 89,853.68 = 36,820 : x
  2. Step 2: Convert to fraction form
    65,110.08/89,853.68 = 36,820/x
  3. Step 3: Cross multiply
    65,110.08x = 89,853.68 × 36,820
  4. Step 4: Simplify right side
    65,110.08x = 3,308,412,497.60
  5. Step 5: Solve for x
    x = 3,308,412,497.60/65,110.08
  6. Step 6: Final answer
    x = 50,812.60

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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.