Home / 66,220.24-99,332.16-19,474.60

Finding the Fourth Proportional to 66,220.24, 99,332.16 and 19,474.60

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Solution

The fourth proportional to 66,220.24, 99,332.16 and 19,474.60 is: 29,212.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,220.24 : 99,332.16 = 19,474.60 : x
  2. Step 2: Convert to fraction form
    66,220.24/99,332.16 = 19,474.60/x
  3. Step 3: Cross multiply
    66,220.24x = 99,332.16 × 19,474.60
  4. Step 4: Simplify right side
    66,220.24x = 1,934,454,083.14
  5. Step 5: Solve for x
    x = 1,934,454,083.14/66,220.24
  6. Step 6: Final answer
    x = 29,212.43

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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.