Home / 66,650.28-99,975.54-19,899.48

Finding the Fourth Proportional to 66,650.28, 99,975.54 and 19,899.48

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Solution

The fourth proportional to 66,650.28, 99,975.54 and 19,899.48 is: 29,849.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,650.28 : 99,975.54 = 19,899.48 : x
  2. Step 2: Convert to fraction form
    66,650.28/99,975.54 = 19,899.48/x
  3. Step 3: Cross multiply
    66,650.28x = 99,975.54 × 19,899.48
  4. Step 4: Simplify right side
    66,650.28x = 1,989,461,258.72
  5. Step 5: Solve for x
    x = 1,989,461,258.72/66,650.28
  6. Step 6: Final answer
    x = 29,849.26

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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.