Home / 66,153.24-99,231.48-19,407.60

Finding the Fourth Proportional to 66,153.24, 99,231.48 and 19,407.60

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Solution

The fourth proportional to 66,153.24, 99,231.48 and 19,407.60 is: 29,111.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,153.24 : 99,231.48 = 19,407.60 : x
  2. Step 2: Convert to fraction form
    66,153.24/99,231.48 = 19,407.60/x
  3. Step 3: Cross multiply
    66,153.24x = 99,231.48 × 19,407.60
  4. Step 4: Simplify right side
    66,153.24x = 1,925,844,871.25
  5. Step 5: Solve for x
    x = 1,925,844,871.25/66,153.24
  6. Step 6: Final answer
    x = 29,111.88

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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.