Home / 66,330.28-99,495.42-21,945.12

Finding the Fourth Proportional to 66,330.28, 99,495.42 and 21,945.12

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Solution

The fourth proportional to 66,330.28, 99,495.42 and 21,945.12 is: 32,917.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,330.28 : 99,495.42 = 21,945.12 : x
  2. Step 2: Convert to fraction form
    66,330.28/99,495.42 = 21,945.12/x
  3. Step 3: Cross multiply
    66,330.28x = 99,495.42 × 21,945.12
  4. Step 4: Simplify right side
    66,330.28x = 2,183,438,931.35
  5. Step 5: Solve for x
    x = 2,183,438,931.35/66,330.28
  6. Step 6: Final answer
    x = 32,917.68

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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.