Home / 66,004.10-99,015.56-21,621.36

Finding the Fourth Proportional to 66,004.10, 99,015.56 and 21,621.36

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Solution

The fourth proportional to 66,004.10, 99,015.56 and 21,621.36 is: 32,435.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,004.10 : 99,015.56 = 21,621.36 : x
  2. Step 2: Convert to fraction form
    66,004.10/99,015.56 = 21,621.36/x
  3. Step 3: Cross multiply
    66,004.10x = 99,015.56 × 21,621.36
  4. Step 4: Simplify right side
    66,004.10x = 2,140,850,960.25
  5. Step 5: Solve for x
    x = 2,140,850,960.25/66,004.10
  6. Step 6: Final answer
    x = 32,435.12

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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.