Home / 61,780.21-85,256.82-33,485.92

Finding the Fourth Proportional to 61,780.21, 85,256.82 and 33,485.92

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Solution

The fourth proportional to 61,780.21, 85,256.82 and 33,485.92 is: 46,210.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,780.21 : 85,256.82 = 33,485.92 : x
  2. Step 2: Convert to fraction form
    61,780.21/85,256.82 = 33,485.92/x
  3. Step 3: Cross multiply
    61,780.21x = 85,256.82 × 33,485.92
  4. Step 4: Simplify right side
    61,780.21x = 2,854,903,053.97
  5. Step 5: Solve for x
    x = 2,854,903,053.97/61,780.21
  6. Step 6: Final answer
    x = 46,210.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.