Home / 66,153.49-99,231.86-19,407.85

Finding the Fourth Proportional to 66,153.49, 99,231.86 and 19,407.85

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Solution

The fourth proportional to 66,153.49, 99,231.86 and 19,407.85 is: 29,112.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,153.49 : 99,231.86 = 19,407.85 : x
  2. Step 2: Convert to fraction form
    66,153.49/99,231.86 = 19,407.85/x
  3. Step 3: Cross multiply
    66,153.49x = 99,231.86 × 19,407.85
  4. Step 4: Simplify right side
    66,153.49x = 1,925,876,957.06
  5. Step 5: Solve for x
    x = 1,925,876,957.06/66,153.49
  6. Step 6: Final answer
    x = 29,112.25

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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.