Home / 66,112.89-99,185.75-19,365.77

Finding the Fourth Proportional to 66,112.89, 99,185.75 and 19,365.77

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Solution

The fourth proportional to 66,112.89, 99,185.75 and 19,365.77 is: 29,053.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,112.89 : 99,185.75 = 19,365.77 : x
  2. Step 2: Convert to fraction form
    66,112.89/99,185.75 = 19,365.77/x
  3. Step 3: Cross multiply
    66,112.89x = 99,185.75 × 19,365.77
  4. Step 4: Simplify right side
    66,112.89x = 1,920,807,829.02
  5. Step 5: Solve for x
    x = 1,920,807,829.02/66,112.89
  6. Step 6: Final answer
    x = 29,053.45

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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.