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Finding the Fourth Proportional to 53,330.67, 79,996.01 and 13,887.67

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Solution

The fourth proportional to 53,330.67, 79,996.01 and 13,887.67 is: 20,831.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,330.67 : 79,996.01 = 13,887.67 : x
  2. Step 2: Convert to fraction form
    53,330.67/79,996.01 = 13,887.67/x
  3. Step 3: Cross multiply
    53,330.67x = 79,996.01 × 13,887.67
  4. Step 4: Simplify right side
    53,330.67x = 1,110,958,188.20
  5. Step 5: Solve for x
    x = 1,110,958,188.20/53,330.67
  6. Step 6: Final answer
    x = 20,831.51

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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.