Home / 81,173.03-112,054.34-62,053.60

Finding the Fourth Proportional to 81,173.03, 112,054.34 and 62,053.60

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Solution

The fourth proportional to 81,173.03, 112,054.34 and 62,053.60 is: 85,661.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,173.03 : 112,054.34 = 62,053.60 : x
  2. Step 2: Convert to fraction form
    81,173.03/112,054.34 = 62,053.60/x
  3. Step 3: Cross multiply
    81,173.03x = 112,054.34 × 62,053.60
  4. Step 4: Simplify right side
    81,173.03x = 6,953,374,928.67
  5. Step 5: Solve for x
    x = 6,953,374,928.67/81,173.03
  6. Step 6: Final answer
    x = 85,661.15

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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.