Home / 65,105.40-89,847.99-38,247.66

Finding the Fourth Proportional to 65,105.40, 89,847.99 and 38,247.66

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Solution

The fourth proportional to 65,105.40, 89,847.99 and 38,247.66 is: 52,783.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,105.40 : 89,847.99 = 38,247.66 : x
  2. Step 2: Convert to fraction form
    65,105.40/89,847.99 = 38,247.66/x
  3. Step 3: Cross multiply
    65,105.40x = 89,847.99 × 38,247.66
  4. Step 4: Simplify right side
    65,105.40x = 3,436,475,373.20
  5. Step 5: Solve for x
    x = 3,436,475,373.20/65,105.40
  6. Step 6: Final answer
    x = 52,783.26

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1.5x scale

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.