Home / 65,917.48-90,966.18-36,109.48

Finding the Fourth Proportional to 65,917.48, 90,966.18 and 36,109.48

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Solution

The fourth proportional to 65,917.48, 90,966.18 and 36,109.48 is: 49,831.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,917.48 : 90,966.18 = 36,109.48 : x
  2. Step 2: Convert to fraction form
    65,917.48/90,966.18 = 36,109.48/x
  3. Step 3: Cross multiply
    65,917.48x = 90,966.18 × 36,109.48
  4. Step 4: Simplify right side
    65,917.48x = 3,284,741,457.39
  5. Step 5: Solve for x
    x = 3,284,741,457.39/65,917.48
  6. Step 6: Final answer
    x = 49,831.11

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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.